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question_answer1)
Unit of acceleration is
A)
m/s done
clear
B)
ms done
clear
C)
\[\text{m}/{{\text{s}}^{\text{2}}}\] done
clear
D)
none of these done
clear
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question_answer2)
A body goes from A to B with a velocity of 20 m/s and comes back B to A with a velocity of 30 m/s. The average velocity of the body during the whole journey is
A)
zero done
clear
B)
24 m/s done
clear
C)
25 m/s done
clear
D)
none of these done
clear
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question_answer3)
If an object covering distances in direct proportion to the square of the time elapsed, then the acceleration is
A)
Increasing done
clear
B)
decreasing done
clear
C)
Constant done
clear
D)
none of these done
clear
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question_answer4)
Velocity-time graph of a body with uniform velocity is a straight line
A)
Parallel to x-axis done
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B)
Parallel to 3/-axis done
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C)
Inclined to x-axis done
clear
D)
Inclined to y-axis done
clear
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question_answer5)
Distance travelled by a freely falling body is proportional to
A)
Mass of the body done
clear
B)
Square of the acceleration due to gravity done
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C)
Square of the time of fall done
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D)
Time of fall done
clear
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question_answer6)
The rate of change of displacement with time is
A)
Speed done
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B)
acceleration done
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C)
Retardation done
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D)
velocity done
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question_answer7)
Which of the following is not vector quantity?
A)
Retardation done
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B)
Acceleration due to gravity done
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C)
Average speed done
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D)
Displacement done
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question_answer8)
If the time-displacement graph of a particle is parallel to the time-axis, then velocity of the particle is
A)
Infinity done
clear
B)
Unity done
clear
C)
Equal to acceleration of the body done
clear
D)
Zero done
clear
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question_answer9)
In the velocity-time graph, AB shows that the body has
A)
Uniform acceleration done
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B)
Non-uniform retardation done
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C)
Uniform speed done
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D)
Initial velocity OA and is moving with uniform retardation done
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question_answer10)
In the given velocity-time graph, AB shows that the body has
A)
Uniform acceleration done
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B)
Uniform retardation done
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C)
Uniform velocity throughout its motion and has zero initial velocity done
clear
D)
None of these done
clear
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question_answer11)
In the velocity-time graph, the distance travelled by the particle between 1.0 sec and 4.0 sec, is approximately
A)
50 m done
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B)
40 m done
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C)
30 m done
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D)
20 m done
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question_answer12)
If the displacement-time graph for the two particles A and B ^ire straight lines inclined at angles of \[30{}^\circ \] and \[60{}^\circ \] with the time axis, then ratio of the velocities \[{{u}_{A}}:{{u}_{B}}\] Up will be
A)
1:2 done
clear
B)
\[1:\sqrt{3}\] done
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C)
\[\sqrt{3}:1\] done
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D)
1:3 done
clear
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question_answer13)
In the given figure, velocity of the body at A is
A)
Zero done
clear
B)
unity done
clear
C)
Maximum done
clear
D)
infinite done
clear
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question_answer14)
The velocity-time graph for a body with non-uniform motion is a straight line
A)
Straight line done
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B)
Straight line parallel to \[x\]-axis done
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C)
Straight line parallel to y-axis done
clear
D)
Curved line done
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question_answer15)
Area under a velocity-time graph gives
A)
Time taken by a moving object done
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B)
Distance travelled by a moving object done
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C)
Acceleration of moving object done
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D)
Retardation of a moving object done
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question_answer16)
Which one of the following represents the time-displacement graph of two objects a and b moving with zero relative speed ?
A)
B)
C)
D)
None of these done
clear
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question_answer17)
If\[x\] denotes displacement in time t and \[x\] = a cos cot, then for co = 1, the acceleration will be
A)
\[\text{a cos t}\] done
clear
B)
\[-\text{ a cos t}\] done
clear
C)
\[\text{a sin t}\] done
clear
D)
\[-\text{ a sin t}\] done
clear
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question_answer18)
Displacement y (in m) of a body varies with time t (in sec.) as y = \[=\frac{-2}{3}{{t}^{2}}+16t+2\] How long does the body take to come to rest?
A)
8 sec done
clear
B)
10 sec done
clear
C)
12 sec done
clear
D)
16 sec done
clear
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question_answer19)
A particle moves along x-axis in such a way that its coordinate (x) varies with time (t) according to the expression, \[x=(2-5t+6{{t}^{2}})m\]. Then the initial velocity of the particle is
A)
- 5 m/ sec done
clear
B)
- 3 m/sec done
clear
C)
6 m/sec done
clear
D)
3 m/sec done
clear
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question_answer20)
A person travels along a straight road for the first I half length with a velocity \[{{u}_{1}}\] and the second half length with a velocity \[{{u}_{2}}\]. Then the mean velocity y is given by
A)
\[u=\frac{{{u}_{1}}+{{u}_{2}}}{2}\] done
clear
B)
\[u=\sqrt{{{u}_{1}}{{u}_{2}}}\] done
clear
C)
\[u=\sqrt{\frac{{{u}_{1}}}{{{u}_{2}}}}\] done
clear
D)
\[\frac{2}{u}=\frac{1}{{{u}_{1}}}+\frac{1}{{{u}_{2}}}\] done
clear
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question_answer21)
If initial velocity of a particle is u (at t = 0) and the acceleration\[f\]is at, then
A)
\[v=u+a{{t}^{2}}\] done
clear
B)
\[v=u+\frac{a{{t}^{2}}}{2}\] done
clear
C)
\[v=u+at\] done
clear
D)
\[v=u\] done
clear
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question_answer22)
If a body is thrown up with an initial velocity u and covers a maximum height of A, then h is equal to
A)
\[\frac{{{u}^{2}}}{2g}\] done
clear
B)
\[\frac{u}{2g}\] done
clear
C)
\[2{{u}^{2}}g\] done
clear
D)
none of these done
clear
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question_answer23)
A body is thrown vertically upwards and rises to a height of 10 m. The velocity with which the body was thrown upwards is \[\left( \text{g }=\text{ 9}.\text{8 m}/{{\text{s}}^{\text{2}}} \right)\]
A)
16 m/s done
clear
B)
15 m/s done
clear
C)
14 m/s done
clear
D)
12m/s done
clear
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question_answer24)
If a body is thrown vertically upward and rises to a height of 10 m, then time taken by the body to reach the highest point is
A)
1.043s done
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B)
1.43 done
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C)
1.024s done
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D)
None of these done
clear
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question_answer25)
Moving with uniform acceleration a body covers 150 m during 10 sec, so that it covers 24 m during the tenth sec. Then the acceleration of the body is
A)
\[\text{2 m}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[~\text{3 m }/{{\text{s}}^{\text{2}}}\] done
clear
C)
\[\text{4 m}/{{\text{s}}^{\text{2}}}\] done
clear
D)
\[~\text{6 m}/{{\text{s}}^{\text{2}}}\] done
clear
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question_answer26)
A truck running along a straight line increases its speed uniformly from 30 m/s to 60 m/s over a time interval 1 min. The distance travelled during this time interval is
A)
900m done
clear
B)
1800m done
clear
C)
2700m done
clear
D)
3600 m done
clear
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question_answer27)
A car travels \[\frac{1}{3}\] rd distance on a straight road 0 with a velocity of 10 km/hr, next \[\frac{1}{3}\]rd with velocity 20 km/hr and the last \[\frac{1}{3}\] rd with velocity 60 km/hr. What is the average velocity of the car in the whole journey?
A)
4 km/hr done
clear
B)
6 km/hr done
clear
C)
12 km/hr done
clear
D)
18 km/hr done
clear
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question_answer28)
A body starts from rest and moves with a uniform acceleration. The ratio of the distance covered in the \[{{n}^{th}}\] second to distance covered in n seconds is
A)
\[\frac{2}{n}-\frac{1}{{{n}^{2}}}\] done
clear
B)
\[\frac{1}{{{n}^{2}}}-\frac{1}{n}\] done
clear
C)
\[\frac{2}{{{n}^{2}}}-\frac{1}{n}\] done
clear
D)
\[\frac{2}{n}-\frac{1}{{{n}^{2}}}\] done
clear
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question_answer29)
A motor ship covers the distance of 300 km between two localities on a river in 10 hrs downstream and in 12 hrs upstream. Find the flow velocity of the river assuming that these velocities are constant.
A)
2.0 km/hr done
clear
B)
2.5 km/hr done
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C)
3 km/hr done
clear
D)
3.5 km/hr done
clear
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question_answer30)
Driver of a train travelling at 115 km/hr sees on a same track, 100m in front of him, a slow train travelling in the same direction at 25 km/hr. The least retardation that must be applied to faster train to avoid a collision is
A)
\[\text{3}.\text{125 m}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[\text{3}.\text{5 m}/{{\text{s}}^{\text{2}}}\] done
clear
C)
\[\text{2}.\text{75 m}/{{\text{s}}^{\text{2}}}\] done
clear
D)
\[\text{3}.0\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
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question_answer31)
An electron starting from rest has a velocity that increases linearly with time, i.e. \[u=kt\], where k = (2 m/s)/s. The distance covered in the first three second will be
A)
36m done
clear
B)
27m done
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C)
18 m done
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D)
9 m done
clear
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question_answer32)
Distance of the moon from the earth is \[\text{4 }\times \text{ 1}{{0}^{\text{8}}}\] m. The time taken by a radar signal transmitted from the earth to reach the moon is
A)
5.2 s done
clear
B)
1.3 s done
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C)
2.6 s done
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D)
0.70 s done
clear
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question_answer33)
A stone is dropped into a well in which the level of water is h below, the top of the well. If \[v\] is velocity of sound, then time T after which the splash is heard is equal to
A)
\[\frac{2h}{v}\] done
clear
B)
\[\sqrt{\frac{2h}{v}}+\frac{h}{g}\] done
clear
C)
\[\sqrt{\frac{2h}{g}}+\frac{h}{v}\] done
clear
D)
\[\sqrt{\frac{h}{2g}}+\frac{2h}{v}\] done
clear
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question_answer34)
A stone weighing 3 kg falls from the top of a tower 100 m high and buries itself 2 m deep in the sand. The time of penetration is
A)
0.09 sec done
clear
B)
0.9 sec done
clear
C)
2.1 sec done
clear
D)
1.3 sec done
clear
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question_answer35)
The velocity of a body at any instant is 10 m/s. After 5 sec, velocity of the particle is 20 m/s. The velocity at 3 seconds before is
A)
8 m/sec done
clear
B)
4 m/sec done
clear
C)
6 m/sec done
clear
D)
7 m/sec done
clear
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question_answer36)
A body covers 200 cm in the first 2 sec. and 220 cm in next 4 sec. What is the velocity of the body at the end of 7th second?
A)
40 cm/sec done
clear
B)
20 cm/sec done
clear
C)
10 cm/sec done
clear
D)
5 cm/sec done
clear
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question_answer37)
A boat takes 2 hrs. to travel 8 km and back in still water lake with water velocity of 4 km/hr, then the time taken for going upstream of 8 km and coming back is
A)
120 min done
clear
B)
160mm done
clear
C)
200 min done
clear
D)
None of these done
clear
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question_answer38)
If two bodies of different masses \[{{m}_{1}}\] and \[{{m}_{2}}\] are dropped from different heights \[{{h}_{1}}\] and \[{{h}_{2}}\], then ratio of the times taken by the two to drop through these distances is
A)
\[{{h}_{1}}:{{h}_{2}}\] done
clear
B)
\[{{h}_{2}}/{{h}_{1}}\] done
clear
C)
\[{{\sqrt{h}}_{1}}:\sqrt{{{h}_{2}}}\] done
clear
D)
\[{{h}^{2}}_{1}:{{h}^{2}}_{2}\] done
clear
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question_answer39)
A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 sec, then average acceleration during contact is
A)
\[\text{21}00\text{m}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[\text{14}00\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
C)
\[\text{7}00\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
D)
\[~\text{4}00\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
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question_answer40)
A stone is thrown vertically upward with an initial velocity u from the top of a tower, reaches the ground with a velocity 3u. The height of the tower
A)
\[\frac{3{{u}^{2}}}{g}\] done
clear
B)
\[\frac{4{{u}^{2}}}{g}\] done
clear
C)
\[\frac{6{{u}^{2}}}{g}\] done
clear
D)
\[\frac{9{{u}^{2}}}{g}\] done
clear
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question_answer41)
SI unit for the average velocity is
A)
m/s done
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B)
km/s done
clear
C)
cm/s done
clear
D)
none of these done
clear
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question_answer42)
SI unit of the resultant velocity is
A)
m/s done
clear
B)
km/s done
clear
C)
cm/s done
clear
D)
none of these done
clear
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question_answer43)
SI unit of the angular velocity is
A)
m/s done
clear
B)
rad done
clear
C)
rad /s done
clear
D)
m/rad done
clear
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question_answer44)
N \[\text{k}{{\text{g}}^{\text{-1}}}\]is the unit of
A)
Retardation done
clear
B)
Acceleration done
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C)
Rate of change of velocity done
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D)
All of! These done
clear
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question_answer45)
If a ball is thrown up with a certain velocity. It attains a height of 40 m and comes back to the thrower, then
A)
Total distance covered by it is 40 m done
clear
B)
Total displacement covered by it is 80 m done
clear
C)
Total displacement is zero done
clear
D)
Total distance covered by it is zero done
clear
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question_answer46)
Acceleration of a body projected upwards with a certain velocity is
A)
\[\text{9}.\text{8 m}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[-\text{ 9}.\text{8 m}/{{\text{s}}^{\text{2}}}\] done
clear
C)
Zero done
clear
D)
Insufficient data done
clear
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question_answer47)
A stone tied to a string is whirled in a circle, and while it is revolving, the rope suddenly breaks. Then the stone
A)
Flies off tangentially done
clear
B)
Moves radially inward done
clear
C)
Moves radially outward done
clear
D)
None of these done
clear
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question_answer48)
The coordinates of moving particle at any time t are given by\[x=a{{t}^{2}}\] and\[\text{y }=\text{ b}{{\text{t}}^{\text{2}}}\]. The speed of the particle is
A)
\[2t(a+b)\] done
clear
B)
\[2t\sqrt{{{a}^{2}}+{{b}^{2}}}\] done
clear
C)
\[2t\left( \sqrt{{{a}^{2}}-{{b}^{2}}} \right)-2t\left( \sqrt{{{a}^{2}}-{{b}^{2}}} \right)\] done
clear
D)
\[\sqrt{{{a}^{2}}+{{b}^{2}}}\] done
clear
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question_answer49)
If a body of mass 0.10 kg is moving on circular path of diameter 1.0 m at the rate of 10 revolutions per 31.4 sec, then centripetal force acting on the body (\[\pi \] = 3.14) is
A)
0.2 Newton done
clear
B)
2.0 Newton done
clear
C)
0.02 Newton done
clear
D)
20.0 Newton done
clear
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question_answer50)
A car of mass 1000 kg moves on a circular track of radius 20 m. If the coefficient of friction is 0.64, then what is the maximum velocity with which the car can be moved?
A)
112 m/s done
clear
B)
11.2 m/s done
clear
C)
\[\frac{0.64\times 20}{1000}m/s\] done
clear
D)
\[\frac{1000}{0.64\times 20}m/s\] done
clear
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question_answer51)
The earth's radius is 6400 km. It makes one revolution about its own axis in 24 hrs. The centripetal acceleration of a point on its equator is nearly
A)
\[\text{34}0\text{ cm}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[\text{34 cm}/{{\text{s}}^{\text{2}}}\] done
clear
C)
\[\text{3}.\text{4 cm}/{{\text{s}}^{\text{2}}}\] done
clear
D)
\[0.\text{34 cm}/{{\text{s}}^{\text{2}}}\] done
clear
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question_answer52)
In the previous question, the velocity
A)
Increases between point 0 and A done
clear
B)
Increases between point A and B done
clear
C)
Decre ases between points A and B done
clear
D)
Is zero through out done
clear
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question_answer53)
A body moving along a circular path has
A)
a constant speed done
clear
B)
A constant velocity done
clear
C)
No tangential velocity done
clear
D)
No radial acceleration done
clear
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question_answer54)
The acceleration of a point on the rim of flywheel 1 m in diameter, if it makes 1200 revolutions per minute is
A)
\[\text{87}{{\pi }^{\text{2}}}\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[\text{8}0\text{ }{{\pi }^{\text{2}}}\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
C)
\[\text{8}00\text{ }{{\pi }^{\text{2}}}\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
D)
none of these done
clear
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question_answer55)
A person with a mass of M kg, stands in contact against the wall of a cylindrical drum of radius r rotating with an angular velocity co. If the coefficient of friction between the wall and the clothing is then minimum rotational speed of the cylinder which enables the person to remain stuck to the wall when the floor is suddenly removed is
A)
\[{{\omega }_{\min }}=\sqrt{\frac{g}{\mu r}}\] done
clear
B)
\[{{\omega }_{\min }}=\sqrt{\frac{\mu r}{g}}\] done
clear
C)
\[{{\omega }_{\min }}=\sqrt{\frac{2g}{\mu r}}\] done
clear
D)
\[{{\omega }_{\min }}=\sqrt{\frac{gr}{\mu }}\] done
clear
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question_answer56)
A motor car is travelling 30 m/s on a circular road of radius 500 m. It is increasing in speed at the rate of 2\[\text{m}/{{\text{s}}^{\text{2}}}\]. What is its acceleration?
A)
\[\text{3}.0\text{ m}/{{\text{s}}^{\text{2}}}\] done
clear
B)
\[\text{2}.\text{7 m}/{{\text{s}}^{\text{2}}}\] done
clear
C)
\[\text{1}.\text{8 m}/{{\text{s}}^{\text{2}}}\] done
clear
D)
\[\text{2}.\text{5 m}/{{\text{s}}^{\text{2}}}\] done
clear
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question_answer57)
A 2 kg stone at the end of a string 1m long is whirled in a vertical circle. At some point its speed is 4 m/s. The tension of the string is 51.6 N at this instant. Therefore, the stone is
A)
At the top of the circle done
clear
B)
At the bottom of the circle done
clear
C)
Half-way down done
clear
D)
None of these done
clear
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question_answer58)
A cane filled with water is revolved in a vertical circle of radius 4 m and the water just does not fall down. The time period of revolution will be
A)
1 sec done
clear
B)
10 sec done
clear
C)
8 sec done
clear
D)
4 sec done
clear
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question_answer59)
The velocity-time graph of a body falling from rest under gravity and rebounding from a solid surface is represented by which of the graphs shown in the figure?
A)
B)
C)
D)
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question_answer60)
Unit for the rate of change of velocity is
A)
m/s done
clear
B)
\[\text{m}/{{\text{s}}^{\text{2}}}\] done
clear
C)
N s done
clear
D)
N / s done
clear
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question_answer61)
A phonograph record on turn table rotates at 30 rpm. The linear speed of a point on the record at the needle at the beginning of the recording when it is at a distance of 14 cm from the centre is
A)
22 cm/ sec done
clear
B)
44 cm/sec done
clear
C)
48 cm/sec done
clear
D)
52 cm/sec done
clear
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question_answer62)
A vehicle is moving with a velocity u on a curved road of width b and radius of curvature R. For counteracting the centrifugal force on the vehicle, the difference in elevation required in between the outer and inner edges of the road is
A)
\[\frac{{{v}^{2}}b}{Rg}\] done
clear
B)
\[\frac{vb}{Rg}\] done
clear
C)
\[\frac{v{{b}^{2}}}{Rg}\] done
clear
D)
\[\frac{vb}{{{R}^{2}}g}\] done
clear
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question_answer63)
A stone of mass 1 kg tied to a light inextensible 10 string of length, L = \[\frac{10}{3}\]m is whirling in a circular 0 path of radius L in a vertical plane. If the ratio of the maximum tension in the string to the minimum is 4 and if g is taken to be 10\[\text{m}/{{\text{s}}^{\text{2}}}\], then speed of stone at the highest point of the circle is
A)
20 m / s done
clear
B)
\[10\sqrt{3}m/s\] done
clear
C)
\[50\sqrt{2}m/s\] done
clear
D)
10 m / s done
clear
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question_answer64)
The acceleration-time graph for a body is shown in the figure. The most probable velocity-time graph for the body is
A)
B)
C)
D)
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question_answer65)
A cylist moves from a certain point X and goes round a circle radius, r and reaches Y, exactly at the other side of the point X, as shown in the given figure.
(i) The displacement of the cylist would be
A)
\[\pi r\] done
clear
B)
\[2\pi r\] done
clear
C)
\[2r\] done
clear
D)
\[\frac{2\pi }{r}\] done
clear
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question_answer66)
A cylist moves from a certain point X and goes round a circle radius, r and reaches Y, exactly at the other side of the point X, as shown in the given figure.
(ii) The distance covered by the cyclist would be
A)
\[\pi r\] done
clear
B)
\[2\pi r\] done
clear
C)
2r done
clear
D)
\[\frac{2\pi }{r}\] done
clear
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question_answer67)
The relationship between average speed, time and distance is
A)
Average speed = distance x time done
clear
B)
\[\text{Average}\,\text{Speed=}\frac{\text{Total}\,\text{distance}}{\text{Total}\,\text{time}}\] done
clear
C)
Time = average speed/distance done
clear
D)
Distance = average speed x time done
clear
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question_answer68)
A body moving along a circular path has
A)
both constant speed done
clear
B)
constant velocity done
clear
C)
no radial acceleration done
clear
D)
no tangential velocity done
clear
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question_answer69)
A ball of mass m is thrown vertically up. Another ball of mass 2m is thrown at an angle 9. Both of them stay in our view for the same period. The heights attained by the two are in the ratio
A)
2 : 1 done
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B)
1 : 1 done
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C)
1 : cos \[\text{ }\!\!\theta\!\!\text{ }\] done
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D)
1 : sec \[\text{ }\!\!\theta\!\!\text{ }\] done
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question_answer70)
A ball rolls off the top of a stair way with a horizontal velocity u m/s. If the steps are h metres high and b metres wide, then ball will hit the edge of the nth step, if
A)
\[n=\frac{2h{{u}^{2}}}{g{{b}^{2}}}\] done
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B)
\[n=\frac{2hu}{g{{b}^{2}}}\] done
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C)
\[n=\frac{2{{b}^{2}}}{2h{{u}^{2}}}\] done
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D)
\[n=\frac{g{{b}^{2}}}{2hu}\] done
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question_answer71)
When the distance an object travels is directly proportional to the length of time, it is said to travel with
A)
Constant speed done
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B)
Zero velocity done
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C)
Constant acceleration done
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D)
Uniform velocity done
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question_answer72)
Speed of a body describing its motion is
A)
Direction done
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B)
state done
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C)
Type done
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D)
rapidity done
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question_answer73)
Which of the given distance-time graph represents the accelerated motion of a body?
A)
B)
C)
D)
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question_answer74)
Two paper screens A and B are separated by a distance of 100 m. A bullet pierces A and then B. The hole in B is 10 cm below the hole in A. If the bullet is travelling horizontally at A, calculate the velocity of the bullet at A. Neglect the resistance of paper in air.
A)
100 m/sec done
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B)
400 m/sec done
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C)
550 m/sec done
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D)
700 m/sec done
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question_answer75)
Which of the following represent distance (s) -time (t) graph for a retarded motion?
A)
B)
C)
D)
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question_answer76)
A rubber ball dropped from a certain height is an example of
A)
uniform acceleration done
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B)
uniform retardation done
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C)
uniform speed done
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D)
non-uniform speed done
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question_answer77)
If the velocity of a body does not change, its acceleration is
A)
Zero done
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B)
infinite done
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C)
Unity done
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D)
none of these done
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question_answer78)
An aeroplane, when it is vertically above the point A on the ground, drops a bomb which hits target B on the ground. If the plane is moving at a height of 1.96 km from the ground with a speed of 300 m/sec, then distance between A and B is (neglecting air resistance)
A)
3 km done
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B)
6 km done
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C)
3 m/s done
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D)
4 m/s done
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question_answer79)
A grasshopper can jump a maximum horizontal distance of 0.2 m. If he spends negligible time on ground, with what speed can he travel along the road?
A)
1 m/s done
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B)
2 m/s done
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C)
3 m/s done
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D)
4 m/s done
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question_answer80)
Ratio of the SI units to CGS units of retardation is
A)
\[\text{1}{{0}^{-\text{2}}}~~~~~~~~~~~~~~\] done
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B)
\[\text{1}{{0}^{\text{2}}}\] done
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C)
10 done
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D)
\[\text{1}{{0}^{-\text{1}}}\] done
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question_answer81)
Physical quantity corresponding to the rate of change of displacement is
A)
Speed done
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B)
velocity done
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C)
Acceleration done
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D)
retardation done
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question_answer82)
Velocity of a body at rest is always
A)
Unity done
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B)
Negative done
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C)
Zero done
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D)
Infinite done
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question_answer83)
When the distance an object travels is directly proportional to the length of time, it is said to travel with
A)
Zero velocity done
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B)
Constant speed done
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C)
Constant acceleration done
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D)
Uniform velocity done
clear
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