Question

A skydiver jumps from an airplane at an altitude of 2,500 ft. He falls under the force of gravity until he opens his parachute at an altitude of 1,000 ft. Approximately how long does the jumper fall before he opens his chute?

Answer 1

the distance between 2,500 and 1,000 represents how long he fell before opening the chute. so you just have to subtract 2,500 and 1,000