Physics, 03.09.2020 16:01 prelogical

A student is standing on a stationary 2.3-kg skateboard. If the student jumps at a velocity of0.37 m/s [forward], the velocity of the skateboard becomes 8.9 m/s [backward]. What is the mass of the student? Show work, please

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A student is standing on a stationary 2.3-kg skateboard. If the student jumps at a velocity of0.37 m...

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