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

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> 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      Log On


   

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) About Me  (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

My calculator said it, I believe it, that settles it
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