The formula to determine the height of the rocket above the ground at any time during the rocket's flight is given by: h = 119t - 7t2 where t = the time, in seconds, that has elapsed since the rocket was launched, and h = the height, in meters, of the rocket above the ground at time t.
The value of h was 0 when the rocket hit the ground. How many seconds after the rocket was launched did it hit the ground?
1
17
2
10
3
7
4
0