A child on a sled reaches the bottom of a hill with a
Chapter 4, Problem 51(choose chapter or problem)
A child on a sled reaches the bottom of a hill with a velocity of and travels 25.0 m along a horizontal straightaway to a stop. If the child and sled together have a mass of 60.0 kg, what is the average retarding force on the sled on the horizontal straightaway?
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