Is it possible that an object is in a state o | vedclass

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(A) Yes,it is possible for an object to be in a state of accelerated motion while the work done by the force is zero.Work done $(W)$ is defined as $W

Vedclass · Accepted Answer

Yes,it is possible.

Vedclass · Answer

(A) Yes,it is possible for an object to be in a state of accelerated motion while the work done by the force is zero.Work done $(W)$ is defined as $W = F \cdot s \cdot \cos(	heta)$,where $F$ is the force,$s$ is the displacement,and $	heta$ is the angle between the force and the displacement.In uniform circular motion,a centripetal force acts on the object directed towards the center of the circle,which causes centripetal acceleration.Since the displacement of the object at any instant is along the tangent to the circular path and the centripetal force is directed towards the center,the angle $	heta$ between the force and the displacement is $90^{\circ}$.Since $\cos(90^{\circ}) = 0$,the work done $W = F \cdot s \cdot 0 = 0$. Thus,despite the presence of an external force causing acceleration,the work done is zero.

Is it possible that an object is in a state of accelerated motion due to an external force acting on it,but no work is being done by the force? Explain with an example.

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