Former NFL punter Ray Guy holds the record for the longest hangtime on a punt. If the ball leaves with an upward velocity of 128 ft/s from an initial height of 4 feet, how long will the ball be in the air? Use the formula H= -16t(squared) +128t +4, where h is the height of the ball in feet and t is the time in seconds since it is kicked. Round your answer to the nearest tenth.
A.
2.7 seconds
B.
3.0 seconds
C.
5.6 seconds
D.
8.0 seconds

Question

Former NFL punter Ray Guy holds the record for the longest hangtime on a punt. If the ball leaves with an upward velocity of 128 ft/s from an initial height of 4 feet, how long will the ball be in the air? Use the formula H= -16t(squared) +128t +4, where h is the height of the ball in feet and t is the time in seconds since it is kicked. Round your answer to the nearest tenth. 
A.
2.7 seconds
B.
3.0 seconds
C.
5.6 seconds
D.
8.0 seconds

anonymous · Answer

solve for t when the equation = 0 that will give you the time the ball is in the air