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A woman bails out of an airplane at an altitude of 12,000 ft, falls freely for 15 s, then opens her parachute. How long
will it take her to reach the ground? Assume linear air resistance v ft/s², taking p = 0.15 without the parachute and
p=1.5 with the parachute. (Suggestion: First determine her height above the ground and velocity when the
parachute opens.)

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