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A student, starting from rest, slides down a water slide. On the way down, a kinetic...

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Physics

A student, starting from rest, slides down a water slide. On theway down, a kinetic frictional force (a nonconservative force) actson her. The student has a mass of 77 kg, and the height of thewater slide is 12.9 m. If the kinetic frictional force does -7.1 ×103 J of work, how fast is the student going at the bottom of theslide?

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solution given data mass m 77 kg height h 129 m kinetic frictional force 71 x 103 J here student is initially rest at top of water surface so student has some potential energy due height from    See Answer
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