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Physics Force & Laws Of Motion Level: High School

Conservation of momentum

A 57.0 kg person , running horizontally with a velocity of +3.92 m/s , jumps onto a 12.6 kg sled that is initially at rest.

(a). Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away .

(b). The sled and person coast 30.0 m on level snow before coming to rest . What is the coefficient of kinetic friction between the sled and the snow ?