Physics, 22.01.2021 04:30, pindu

A 20 kg boy on a 5 kg skateboard coasts to rest from a speed of +4.5 m/s while traveling a distance of 20 m on the sidewalk. What does the free body diagram look like for this situation?

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A 20 kg boy on a 5 kg skateboard coasts to rest from a speed of +4.5 m/s while traveling a distance...