At about 55 meters per second, a falling parachutist (before the parachute opens) no longer accelerates. Air friction opposes acceleration. Although the effect of air friction begins gradually, imagine that the parachuter is free falling until terminal speed (the constant falling speed) is reached. How long would that take?
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At about 55 meters per second, a falling parachutist (before the parachute opens) no longer accelera...
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