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The height, in feet, of a freefalling object t seconds after being dropped from an initial height s can be found using the function h = 16t2 + s.

The height, in feet, of a free‐falling object t seconds after being dropped from an initial
height s can be found using the function h = ‐16t2 + s. An object is dropped from a
helicopter 784 feet above the ground. How long will it take the object to land on the
ground?

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