SOLUTION: An object is thrown upward from the top of a 96 foot building with an initial velocity of 80 feet per second. The height h of the object after t seconds is given by the quadratic e

Question 967989: An object is thrown upward from the top of a 96 foot building with an initial velocity of 80 feet per second. The height h of the object after t seconds is given by the quadratic equation h = -16t^2+80t+96. When will the object hit the ground?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
There is only 1 time when the object is on the ground,
and that is when

Divide through by

( time must be positive so, can't be )
------------------
the object will hit the ground in 6 sec
Here's the plot:

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