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September 20, 2014

Homework Help: mechanics

Posted by Anonymous on Sunday, March 27, 2011 at 5:01am.

A 60 Kg skier leaves the end of a ski-jump ramp with a velocity of 24m/s directed 25 above the horizontal. Suppose that as a result of air drag the skier returns to the ground with a speed of 22 m/s, landing 14m vertically below the end of the ramp. From the launch to the return to the ground, by how much is the mechanical energy of the skier-Earth system reduced because of air drag

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