Questions
A particle is moving along a straight line under the action of a force. Its kinetic energy varies with time as KE = 7t. Force acting on the particle :
detailed solution
Correct option is B
12mv2=7t⇒v∝t1/2⇒dvdt∝t−1/2 which is decreasing with time.Talk to our academic expert!
Similar Questions
A body of mass 3 kg is under a force which causes a displacement in it, given by s =t2 / 3 (in m). Find the work done by the force in 2 second
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