Physics, 15.08.2021 23:30 Shihhschool20

A man roller skates up a hill at 12.5 m/s but slows down, comes to a stop and then accelerates back down the hill until he is going 13.7 m/s the other direction. Assuming the acceleration is constant and this take 18.3 s, what is the man's displacement?

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A man roller skates up a hill at 12.5 m/s but slows down, comes to a stop and then accelerates back...