# Problem: An 80.0-kg skydiver jumps out of a balloon at an altitude of 1 000 m and opens his parachute at an altitude of 200 m.(a) Assuming the total retarding force on the skydiver is constant at 50.0 N with the parachute closed and constant at 3 600 N with the parachute open, find the speed of the skydiver when he lands on the ground.(b) Do you think the skydiver will be injured? Explain.(c) 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) How realistic is the assumption that the total retarding force is constant? Explain.

###### FREE Expert Solution

This problem involves the conservation of energy divided into motion with multiple parts. Both parts involve differences in the magnitude of the non-conservatives forces.

82% (2 ratings) ###### Problem Details

An 80.0-kg skydiver jumps out of a balloon at an altitude of 1 000 m and opens his parachute at an altitude of 200 m.

(a) Assuming the total retarding force on the skydiver is constant at 50.0 N with the parachute closed and constant at 3 600 N with the parachute open, find the speed of the skydiver when he lands on the ground.
(b) Do you think the skydiver will be injured? Explain.
(c) 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) How realistic is the assumption that the total retarding force is constant? Explain.

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Our data indicates that this problem or a close variation was asked in Physics for Scientists and Engineers - Serway Calc 9th Edition. You can also practice Physics for Scientists and Engineers - Serway Calc 9th Edition practice problems.