A person of mass 72 kg sitting on ice pushes a block of mass of 30 kg on ice horizontally with a speed of 12 ms-1. The coefficient of friction between the man and ice and between block and ice in 0.02. If g =10 ms-2, the distances between man and the block, when they come to rest is

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answer is 4.

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Detailed Solution

From LCLMm1v1 = m2v2 ⇒ 30 x 12 = 72v2

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