A parachutist after bailing out falls fr...

A parachutist after bailing out falls freely for 50 metres.Then his parachute opens and he falls with deceleration of `2 ms^(-2)` When he reaches the ground his speed is reduced to only 3 metres per second.At what height did he bail out ? For how long was he in air ?

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The correct Answer is:

293 m,17 s

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