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Answer» If FORCE ACTING on a body then Workdone can be zero This when an object is at rest and no external force except gravity is acting on it in this case the work that would be zero as the force acting on it is perpendicular. Therefore the DISPLACEMENT is zero and if displacement is zero work done would be automatically 0.
Mathematically
W = fs
Is s = displacement is 0
Work = 0
If there is uniform circular MOTION then only the Workdone will be zero this is because in uniform circular motion net force acting on particle is always perpendicular to instentanious VELOCITY so f.ds is always zero ❤❤InshaAllah it will help you!!!❤❤
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