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OpenStudy (anonymous):
An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t^2)
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OpenStudy (anonymous):
How long to fall 144 ft at a velocity of 16 ft/sec/sec : 16t^2 = 144 Simplify, divide both sides by 16 t^2 = 9 t = 3 seconds
OpenStudy (anonymous):
how did u do that
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