SOLUTION: PLease help me with this question: An object is launched upward with an initial velocity of 128 ft/sec. The h in feet of the object after t sec is given by h(t)= 16t^2 + 128t. When

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Question 764133: PLease help me with this question: An object is launched upward with an initial velocity of 128 ft/sec. The h in feet of the object after t sec is given by h(t)= 16t^2 + 128t. When does the object hit the ground?
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


Set your height function equal to zero and solve the quadratic. However, before you start, go get the correct height function that accounts for the fact that acceleration due to gravity is downward in opposition to the upward initial velocity.

John

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