February 19, 2017

Homework Help: physics

Posted by taylor on Tuesday, February 28, 2012 at 3:34pm.

a person is sled-riding down a hill that is 15.0 ft high. starting at the top with a speed of 10.0 ft/s, the sled reaches the bottom with a speed of 25.0 ft/s. (A) determine whether mechanical energy has been conserved. (B) why might mechanical energy not be conserved?

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