Marsh Graham
01/19/2024 · High School
5. A ball is thrown straight upward from the ground and attains a height of \( s(t)=-2 t^{2}+28 t+68 \mathrm{ft} \) above the ground after \( t \mathrm{sec} \). When does the ball reach the maximum height? What is the maximum height?
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The ball reaches its maximum height at \( t = 7 \) seconds, with a height of 166 feet.
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