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22-02-2017
Mathematics

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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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Аноним Аноним

22-02-2017

16t^2 = 144
Simplify, divide both sides by 16
t^2 = 9
t = 3 seconds

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