Physics, 01.12.2020 01:00, levy72

A cannonball is shot from the top of a 47.8 m high hill at a speed of 53.7 m/s. How fast is it going when it reaches the plain below?

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A cannonball is shot from the top of a 47.8 m high hill at a speed of 53.7 m/s. How fast is it going...