Chemistry, 28.09.2020 07:01 qhenley

A boy decides to thrown a coin off the side of a building. He launches the coin upward with an initial velocity of 7.50 m per second. If it lands with a velocity of -12.5 m/s,
A. How high is the building?
B. How long did it take the coin to hit the ground?

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A boy decides to thrown a coin off the side of a building. He launches the coin upward with an initi...