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July 1, 2015

Homework Help: physics

Posted by savannah on Friday, October 14, 2011 at 11:34am.

A hockey puck is hit on a frozen lake and starts moving with a speed of 10.6 m/s. Five seconds later, its speed is 6.10 m/s.
(a) What is its average acceleration?
m/s2
(b) What is the average value of the coefficient of kinetic friction between puck and ice?

(c) How far does the puck travel during this 5.00 s interval?
m

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