SOLUTION: Use the position function s(t) = -16t^2 + v_0t + s_0 v0 ={initial velocity}, s_0 = {initial position}, t ={time} to answer the following question. You throw a ball straigh

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Use the position function s(t) = -16t^2 + v_0t + s_0 v0 ={initial velocity}, s_0 = {initial position}, t ={time} to answer the following question. You throw a ball straigh      Log On

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Question 1019497: Use the position function
s(t) = -16t^2 + v_0t + s_0
v0 ={initial velocity}, s_0 = {initial position}, t ={time}
to answer the following question.
You throw a ball straight up from a rooftop 124 feet high with an initial velocity of 32 feet per second. During which time period will the ball's height exceed that of the rooftop?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
You throw a ball straight up from a rooftop 124 feet high with an initial velocity of 32 feet per second. During which time period will the ball's height exceed that of the rooftop?
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h(t) = -16t^2 + 32t + 124
Find the 2 times the ball is at 124 feet
-16t^2 + 32t + 124 = 124
t = 0 and t = 2 seconds
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0 < t < 2