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Problem: A 90 kg man lying on a surface of negligible friction shoves a stone away from himself, giving it a speed of 5.0

Problem: A 90 kg man lying on a surface of negligible friction shoves a stone away from himself, giving it a speed of 5.0 m/s. If the speed of the man after the shove is 0.005 m/s in the backward direction then what is the mass of the stone?

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