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A 2-kg rifle that is suspended by strings fires a 0.01-kg bu…
A 2-kg rifle that is suspended by strings fires a 0.01-kg bullet at 200 m/s. The recoil velocity of the rifle is about (use conservation of momentum)
A 2-kg rifle that is suspended by strings fires a 0.01-kg bu…
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On a balanced seesaw, a boy three times as heavy as his part…