SOLUTION: Projet Motion. if h=-16t^2+96t represents the height of a rocket, in feet, t seconds after it was fired, when will the rocket hit the ground? Hint: the rocket is on the ground when

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Projet Motion. if h=-16t^2+96t represents the height of a rocket, in feet, t seconds after it was fired, when will the rocket hit the ground? Hint: the rocket is on the ground when      Log On


   

Question 136551: Projet Motion. if h=-16t^2+96t represents the height of a rocket, in feet, t seconds after it was fired, when will the rocket hit the ground? Hint: the rocket is on the ground when h=0.
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Given: h=-16t%5E2%2B96t
When does the rocket hit the ground?
What height will the rocket be when it hits the ground? h=0
h=-16t%5E2%2B96t
0=-16t%5E2%2B96t
0+=+-t%5E2+%2B+6t
0+=+t%28-t+%2B+6%29
this yields t = 0, t = 6