A 55 kg skateboarder takes a running jump onto her skateboard, which has a mass of 7.5 kg and is initially at rest. When

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answerhappygod
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A 55 kg skateboarder takes a running jump onto her skateboard, which has a mass of 7.5 kg and is initially at rest. When

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A 55 kg skateboarder takes a running jump onto her skateboard,which has a mass of 7.5 kg and is initially at rest. When she landson the skateboard, the speed of her and skateboard is 3.2 m/s.Determine her speed jump before landing on skateboard.
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