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April 20, 2014

Homework Help: Physics

Posted by Alex on Saturday, December 15, 2012 at 4:59pm.

A 59-kg person on skis starts from rest down a hill sloped at 36° from the horizontal. The coefficient of friction between the skis and the snow is 0.16. After the skier had been moving for 5.0 s, the friction of the snow suddenly increased and made the net force on the skier zero.

What is the new coefficient of friction?

How fast would the skier now be going after skiing for another 5.0 s?

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