Consider the skateboarder in the figure below. If she has a mass of 57

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Consider the skateboarder in the figure below. If she has a mass of 57 kg, an initial velocity of 21 m/s, and a velocity of 10 m/s at the top of the ramp, what is the work done by friction on the skateboarder? Ignore the kinetic energy of the skateboard's wheels. The skateboarder reaches a maximum height of 5 m.

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