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A block of mass 4 kg is kept over a roug...

A block of mass 4 kg is kept over a rough horizontal surface. The coefficient of friction between the block and the surface is 0.1. At t = 0, 3 `hati`m/s velocity is imparted to the block and simultaneously `2(-hati) N` force starts acting on it. The displacement in first 5s is n` xx hati` where n is

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