A) 23 cm
B) 15 cm
C) 9 cm
D) 5 cm
Correct Answer: D
Solution :
Here: Speed of bullet v = 1000 m/s Distance of target s = 100 m The time taken to cover the horizontal distance of 100 m from the gun to the target is given by \[t=\frac{100}{1000}=0.1\,\sec ond\] During this time, the bullet will fall down vertically under gravity Hence, height \[h=ut+\frac{1}{2}g{{t}^{2}}\] \[=0\times \frac{1}{2}\times 10\times {{(0.1)}^{2}}\] \[=5\times 0.01=0.05m=5cm\]You need to login to perform this action.
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