a particle of amass 4kg travels in uniform circular motion at a speed 5m/s how much work done on the particle by the centripetal force acting on it at any time?
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mass = 4kg , v = 5m/s
work done = F.S
here is centripetal force which is equal to mv^2/r and distance is radius
= mv^2×r/r
= mv^2 = 4 ( 25) = 100
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