A boy of mass m runs with a speed v and jumps onto a sled
A boy of mass m runs with a speed v and jumps onto a sled on an icy pond. The sled was at rest before the boy jumped onto it. After the jump, the sled and boy move at a speed v/4. What is the mass of the sled?
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a boy of mass m runs with a speed v and jumps onto a sled on an icy pond the sled was at rest before the boy jumped
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