A body is moving with a speed of 1 ms –1 and a force F is needed to stop it in a distance x. If the speed of the body is 3 ms –1 , the force needed to stop it in the same distance x will be
Text Solution
Verified by ExpertsThe correct answer is:
D
s = 
i.e. Retarding force ∝ u 2 ∴ 
⇒ F 2 = 9F 1
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