A woman bails out of an aipplane at an alhude of 13,000ft, folls froely for 25 s, then opens her parachute. How long wil it take her to reach the ground? Assume inear air rosistance v ft/s2, taking rho=0.16 without the parachute and p=1.8 with the parachute. (Suggestion. First determine her height abovo the ground and velocity when the parachute opens.)