Posted by **Anonymous** on Sunday, December 9, 2012 at 11:32pm.

A child and sled with a combined mass of 58.9 kg slide down a frictionless hill that is 8.09 m high at an angle of 23◦ from horizontal.

The acceleration of gravity is 9.81 m/s2 .

If the sled starts from rest, what is its speed at the bottom of the hill?

Answer in units of m/s

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