Asked by Merty
An object is thrown downward with an initial velocity of 4 feet per second. The relationship between the distance s it travels and time t is given by s = 4t + 16t2. How long does it take the object to fall 72 feet?
Answers
Answered by
Steve
4t + 16t^2 = 72
4t^2 + t - 18 = 0
(t-2)(4t+9) = 0
t = 2
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