If a football player passes a football from 4 feet off the ground with an initial velocity of 36 feet per second, how long will it take the football to hit the ground? Use the equation h = –16t2 + 36t + 4.

Question

anonymous · Answer

what does h have to equal to mean that the ball is at the ground?

anonymous · Answer

yea

anonymous · Answer

no, i was asking you what value do you need to set h as to find t

anonymous · Answer

or do you need help with that aswell?

cwrw238 · Answer

how far is the ball above the ground when its on the ground?

anonymous · Answer

yes

anonymous · Answer

quantity of 9 plus or minus square root of 65 all over 8

9 plus or minus square root of 65 end root over 8

quantity of 9 plus or minus square root of 97 all over 8

9 plus or minus square root of 97 end root over 8

anonymous · Answer

those are the answers

anonymous · Answer

okay, but before we try to solve for t (which is what the problem is asking for) we must determine what value of h would be appropriate

anonymous · Answer

|dw:1355266065136:dw|