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Superwoman is hovering above the ground when a person free-falling goes by her at a terminal veloctiy of 140 km/h (39m/s). Unfortunately, the parachute doesn't open. Fortunately, Superwomanis around. If it takes her 1.9s to realize the person is in distress, what must her acceleration be if she is to catch the parachutist just before she hits the ground (so exactly at) 1000m below?

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# Terminal velocity physics help

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