Speed of skier at the bottom of slope


Assignment:

A skier coasts down a very smooth, 10-m-high slope (v =20 m/s), what is his speed at the bottom of the slope. If the skier has a mass of 60kg and the force of friction retards his motion by doing 2500 j of work, what is his speed at the bottom of the slope?

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Physics: Speed of skier at the bottom of slope
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