Question

A golf ball is hit from the ground with an initial velocity of 208 feet per second. Assume the starting height of the ball is 0 feet. How long will it take the golf ball to hit the ground?

Answer 1

13 secs
21 secs
42 secs
6 secs

Answer 2

21 secs

Answer 3

how

Answer 4

no its not

Answer 5

i remember doing that and that was the anwser

Answer 6

Don't lie because its wrong

Answer 7

pellet i was wrong its 21

Answer 8

hey begzat help me

Answer 9

Hight = (½) • (- 32) • t²  +  (208) • t so hight is 0
0 = (½) • (- 32) • t²  +  (208) • t factor
0 = t • ( -16 t  +  208 ) product = zero, find when each term is zero
Solutions:t = 0 disregard: at the start Hight = 0
     and -16 t  +  208 = 0
           -208 -208
-16t=-208 divide be -16 both side
t = 13 seconds

Answer 10

i already got it right i was 21