Answer:
8 seconds
Step-by-step explanation:
Assuming a vertical launch, the position of the rocket is given by
xf = xo + vo t + 1/2 at^2
xo = 101 ft vo = 116 xf = 0 (when it hits the ground) a = -32.2 ft/s^2
0 = 101 + 116 t - 16.1 t^2 Use Quadratic Formula to find t = ~~ 8 sec
