February 22, 2017

Homework Help: physics

Posted by unknown on Monday, June 13, 2011 at 4:14pm.

A sled with mass 20 kg is given a shove up a frictionless incline which makes an angle of 28 degrees with the horizontal. eventually the sled comes to rest at height of 1.35 m above where it started. a)calculate its initial speed. b)find the work done by the weight of the sled.

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