A body is acted upon by a force of 10 N and undergoes a displacement in the direction of the force in accordance with the relation s = 3t² + 2t,where s is the displacement in meters and t is in seconds.The rate at which the force is doing work at the instant t = 2 s is A)14 W B)12 W C)120 W D)140 W E)160 W

Question

Quizplus · Accepted Answer

The Answer of A body is acted upon by a force of 10 N and undergoes a displacement in the direction of the force in accordance with the relation s = 3t² + 2t,where s is the displacement in meters and t is in seconds.The rate at which the force is doing work at the instant t = 2 s is A)14 W B)12 W C)120 W D)140 W E)160 W

A Body Is Acted Upon by a Force of 10