An 82.0 kg skydiver jumps out of a balloon at an altitude of 1 100 m...

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Physics

An 82.0 kg skydiver jumps out of a balloon at an altitude of 1100 m and opens the parachute at an altitude of 160 m.
(a) Assuming that the total retarding force on the diver isconstant at 60.0 N with the parachute closed and constant at 3 600N with the parachute open, what is the speed of the diver when helands on the ground?
(b) Do you think the sky diver will be injured? Explain.
(c) At what height should the parachute be opened so that thefinal speed of the skydiver when he hits the ground is 5.00m/s?m
(d) How realistic is the assumption that the total retardingforce is constant? Explain your answer.

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3.6 Ratings (608 Votes)

a using work energy theorem W net change in kinetic energy work done by gravity work done by retarding force when parachute is closed work done by retarding force when parachute is open 12mv2 mgHf 60HfHi See Answer

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