# Question

A hockey puck with a mass of 200 g and an initial speed of 25.0 m/s slides freely to rest in the space of 100 m on a sheet of horizontal ice. How many forces do nonzero work on it as it slows:

(a) (1) none, (2) one, (3) two, or (4) three? Explain.

(b) Determine the work done by all the individual forces on the puck as it slows.

(a) (1) none, (2) one, (3) two, or (4) three? Explain.

(b) Determine the work done by all the individual forces on the puck as it slows.

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