When a body moves in a circular path,no work | vedclass

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(C) The work done by a force is given by the formula $W = \vec{F} \cdot \vec{s} = FS \cos 	heta$,where $	heta$ is the angle between the force vector

Vedclass · Accepted Answer

Force and displacement are perpendicular to each other

Vedclass · Answer

(C) The work done by a force is given by the formula $W = \vec{F} \cdot \vec{s} = FS \cos 	heta$,where $	heta$ is the angle between the force vector and the displacement vector.In uniform circular motion,the centripetal force acts towards the center of the circle,while the displacement (which is along the tangent to the path) is perpendicular to the radius.Therefore,the angle between the force and the displacement is $	heta = 90^\circ$.Since $\cos 90^\circ = 0$,the work done $W = FS \cos 90^\circ = 0$.

When a body moves in a circular path,no work is done by the force since,

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