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Physics, 31.10.2019 00:31 pramirez6994
Ahockey puck is hit on a frozen lake and starts moving with a speed of 12.1 m/s. exactly 6.10 s later, its speed is 6.10 m/s. the acceleration of gravity is 9.81 m/s 2 .
a) what is its average acceleration?
b) what is the coefficient of kinetic friction between the puck and the ice?
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