A person in parachute drops freely from an aeroplane for 10 sec and then the parachute opens out then he deacends with a net reterdation of 12m/s if he strikes ground with a velocity of 20m/s then thw height at which the he gets out of a olane
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i think its ans is 400 m 516 aprox
futuredoctorakshu:
sorry
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hey mate here is your answer
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