An 80.0 kilogram skydiver jumps out of a balloon at an altitude of 1060 meter and opens the parachute at an altitude of 170 meter.
(a) Assuming that the total retarding force on the diver is constant at 50.0 Newton with the parachute closed and constant at 3600 N with the parachute open, find the speed of the diver when he lands on the ground?
(b) Do you think the sky diver will be injured? 00.
(c) Find at what height should the parachute be opened so that the final speed of the skydiver when he hits the ground is 5.00 m/s?
(d) Determine how realistic is the assumption that the total retarding force is constant? Explain.