Posted by **KE KE** on Tuesday, March 30, 2010 at 10:31am.

The function s(t) = 16t^2 models the distance, s(t), in feet, that an object falls in t seconds. Find the number of seconds a sky diver is in free fall after jumping from a plane if she falls 192 feet before opening a parachute. Express your answer in simplified radical form.

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