Questions
The displacement x in metres of a particle of mass m kg moving in one dimension under the action of a force is related to the time t in seconds by the equation t = , the work done by the force (in J) in first six seconds is:
detailed solution
Correct option is B
Here t = x +3 or x = (t-3)2 = t2-6t+9v = dxdt = 2t-6at t = 0, v = 2×0 -6 = -6at t = 6 s, v = 2×6-6 =+6Initial and final KE are same hence no work is done.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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