Question

An 80.0-kg skydiver jumps out of a balloon at an altitude of 1,200 m and opens the parachute at an altitude of 175.0 m. (a) Assuming that the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3,600 N with the parachute open, what is the speed of the diver when he lands on the ground?

Answer 1