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September 14, 2014

Homework Help: physics

Posted by polo Q on Monday, February 28, 2011 at 11:38pm.

A hockey puck is hit on a frozen lake and starts moving with a speed of 12.3 m/s. Five seconds later, its speed is 6.60 m/s.
(a) What is its average acceleration?
1 m/s2
(b) What is the average value of the coefficient of kinetic friction between puck and ice?
2
(c) How far does the puck travel during the 5.00 s interval?
3 m

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