Posted by **Ashley** on Friday, March 30, 2012 at 11:44pm.

A 22 kg girl slides down a playground slide that is 3.6 m high. When she reaches the bottom of the slide, her speed is 1.7 m/s.

The acceleration of gravity is 9.81 m/s2. How much energy was dissipated by fric-tion?

Answer in units of J

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