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.

Asked by Arun Iyer | 19th Feb, 2011, 04:41: PM

Expert Answer:

Dear student,
Falling velocity = acceleration due to gravity X time
2 = 10Xt, t =0.2s
Hope this helps.

Answered by  | 26th Feb, 2011, 07:27: AM

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