ishimwefabrice825 ishimwefabrice825

14-01-2023
Physics

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A stone is thrown into the air. Its height above the ground t seconds after it is thrown is given by
the function h(t) = -5t² + 30t+2 metres.
How high is the stone above the ground at time t = 3 seconds?
b From what height above the ground was the stone released?
At what time is the stone 27 m above the ground?

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