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A parrachutist bails out from an aeropan...

A parrachutist bails out from an aeropane and after dropping through a distance of `40 m` opens the parachute and decelerates at `2 ms^(-2)`. If he reaches the ground with a speed of `2 ms^(-1)`, how lowg he in the air ? At what height did he bail out from the plane ?

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