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S(t)=16t^2+32t, how long will it take the ball to fall 79 feet?
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S(t)=16t^2+32t, how long will it take the ball to fall 79 feet?
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Mar 19, 2017
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S(t)=16t^2+32t, how long will it take the ball to fall 79 feet?
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Mudando o sinal:
-16t² - 32t = 0
-16t*(t-2) = 0
16t = 0 --> t = 0
t-2 = 0 --> t = 2
Adrian Brand
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Mar 24, 2017
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