Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that: (1) its velocity is constant (2) its kinetic energy is constant (3) it moves in a circular path (4) its acceleration is constantA) 1 and 2 are correct
B) 2 and 3 are correct
C) 1 and 4 are correct
D) 1, 2 and 3 are correct
Correct Answer: B
Solution :
The given case is of uniform circular motion, in which speed or kinetic energy remains constant. Direction of velocity and acceleration keep on changing although its magnitude remains constant.
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