Question

PLEASE HELP!!! football is punted from a height of 2.5 feet above the ground and with an initial vertical velocity of 45 feet per second. The equation h= -16^2+45t+2.5 represents the height, in feet, of the football as a function of the time, in seconds, after it has been punted. The football is caught 5.5 feet above the ground. Find the amount of time that the football is in the air.

Answer 1

t=- 5.6888888889

Explanation:

h= 2.5

h=-16^2+45t+2,5

2.5 = 16×16 + 45t + 2.5

2.5 = 256 + 45t+2.5

0= 256+45t

-256= 45t

t=- 5.6888888889

I hope I can make it right about your formula. Thanks.