Physics, 06.04.2020 18:57 violetvinny

Trapper stands on a skateboard at rest and throws a 1 kg rock at a velocity of 15 m/s. Trapper moves back at 1 m/s. What is the combined mass of Trapper and the skateboard?

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Trapper stands on a skateboard at rest and throws a 1 kg rock at a velocity of 15 m/s. Trapper moves...

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