Question: Estimate the velocity with which you would contact the ground if you jumped from an airplane at an altitude of 5,000 ft and (a) air

Estimate the velocity with which you would contact the ground if you jumped from an airplane at an altitude of 5,000 ft and

(a) air resistance is negligible,

(b) air resistance is important, but you forgot your parachute, 

(c) you use a 25 -ft-diameter parachute.

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