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05-11-2020
Physics

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A ball is thrown straight up from the ground with an unknown velocity. It reaches its highest point after 5.5 s. With what velocity did it leave the ground?

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pfellas pfellas

05-11-2020

v = u + at
0 = u -9.8 x 5.5
u = 9.8 x 5.5 = 53.9 m/s

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