Test Academy | A balloon is at a height of 81 m and is ascending upwards with a velocity of 12m /s. A body of 2 kg weight is dropped from it. If g= 10m/s², the body will reach the surface of the earth in 1.5s, 4.025s, 5.4s, 6.75s

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A balloon is at a height of 81 m and is ascending upwards with a velocity of 12m /s. A body of 2 kg weight is dropped from it. If g= 10m/s², the body will reach the surface of the earth in

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1.5s
4.025s
5.4s
6.75s

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