A girl on a sled coasts down a hill. Her speed is 7.8 m/s when she reaches level ground at the bottom. The coefficient of kinetic friction between…

A girl on a sled coasts down a hill. Her speed is 7.8 m/s when she reaches level ground at the bottom. The coefficient of kinetic friction between the sled’s runners and the hard, icy snow is 0.047, and the girl and sled together weigh 635 N. How far does the sled travel on the level ground before coming to rest?

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