Skateboarder moving when her feet hit the ground

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A skateboarder of mass 64.5 kg is riding her 3.17-kg skateboard at a speed of 4.85 m/s. She jumps backward off her skateboard, sending the skateboard forward at a speed of 7.89 m/s. At what speed is the skateboarder moving when her feet hit the ground?

Reference no: EM131240727

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Skateboarder moving when her feet hit the ground : A skateboarder of mass 64.5 kg is riding her 3.17-kg skateboard at a speed of 4.85 m/s. She jumps backward off her skateboard, sending the skateboard forward at a speed of 7.89 m/s. At what speed is the skateboarder moving when her feet hit the gr..
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