When a skydiver jumps from an airplane, the distance "d" in feet the diver falls in t seconds before opening the parachute is given by the formula d = 16t^2. the formula assumes that there is no air resistance find the time it takes a skydiver to fall 1,551 ft before opening the parachute. Round to the nearest 10th.

1. 9.7 s
2. 9.8 s
3. 9.9 s
4. 2.5 s

Question

When a skydiver jumps from an airplane, the distance "d" in feet the diver falls in t seconds before opening the parachute is given by the formula d = 16t^2. the formula assumes that there is no air resistance find the time it takes a skydiver to fall 1,551 ft before opening the parachute. Round to the nearest 10th.

1. 9.7 s
2. 9.8 s 
3. 9.9 s
4. 2.5 s

perl · Answer

you can substitute d = 1551 ft 

1551 = 16t^2   , can you solve now?