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A 15-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of...

A 15-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 27 N. Starting from rest, the sled attains a speed of 2.1 m/s in 7.5 m.

Find the coefficient of kinetic friction between the runners of the sled and the snow.

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