SOLUTION: Need help figureing out a work problem. If Bill throws a apple into the air, and the ball follows a path of the algebraic equation h=-8t^2+40t and H is for height and t for time, h

Question 242166: Need help figureing out a work problem. If Bill throws a apple into the air, and the ball follows a path of the algebraic equation h=-8t^2+40t and H is for height and t for time, how many seconds will it take the for the apple to fall to the ground. have no clue how to even start this
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If Bill throws a apple into the air, and the ball follows a path of the algebraic equation h=-8t^2+40t and H is for height and t for time, how many seconds will it take the for the apple to fall to the ground.
--------------
h(t) = 40t - 8t^2
on the ground, h(t) = 0
40t - 8t^2 = 0
5t - t^2 = 0
t*(5 - t) = 0
t = 0 (at the start)
t = 5 (impact)

RELATED QUESTIONS
i need help figureing out the area of this trpezoid.... (answered by stanbon)

Please help me solve this word problem: A ball is thrown into the air and follows a path (answered by KMST)

Tom throws a ball into the air. The ball travels along a parabolic path represented by... (answered by lwsshak3)

Tom throws a ball into the air. The ball travels on a parabolic path represented by the... (answered by josmiceli)

Tom throws a ball into the air. The ball travels on a parabolic path represented by the... (answered by Fombitz)

Tom throws a ball into the air. The ball travels on a parabolic path represented by the... (answered by jorel1380)

Please help me solve this word problem: A disc is thrown into the air and follows a path... (answered by josmiceli)

Please help me solve this word problem: A disc is thrown into the air and follows a path... (answered by josgarithmetic)

i need help with a figureing out how to solve, A bus travels at a constant speed of 80kmh (answered by rfer,stanbon)