Mathematics, 05.05.2020 00:53, victoria6929
1) A ball is thrown upwards from a rooftop, 80m above the ground. It will reach a maximum vertical height and then fall back to the ground. The height of the ball from the ground at time t is h, which is given by, h = − 16t2 + 64t + 80
a. How long will it take before hitting the ground?
Answers: 1
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