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July 11, 2014

Homework Help: Physics

Posted by wendlen on Tuesday, January 22, 2013 at 5:51pm.

A hockey puck is hit on a frozen lake and starts moving with a speed of 13.80 m/s. Exactly 6.7 s later, its speed is 7.10 m/s.

a) what is the puck's average acceleration?

b) what is the coefficient of kinetic friction between the puck and the ice?

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