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23-12-2022
Physics

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An object is dropped off a tower. Its height h (in feet) above the ground after t seconds is given by h(t)=576−16t2h(t)=576−16t^2, which of the following is the velocity when it strikes the ground?
A. 6 ft/sec
B. - 32 ft/sec
C. - 192 ft/sec
D. 192 ft/sec

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