Sat February 19, 2011 By: Arun Iyer

An aeroplane drops a parachutist.After covering a distance 40m he opens parachute and drops at the rate of 2m/s^2.If he reaches ground with speed of 2 m /s, how long does he remain in the air.

Expert Reply
Sat February 26, 2011
Dear student,
Falling velocity = acceleration due to gravity X time
2 = 10Xt, t =0.2s
Hope this helps.
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