A balloon is at a height of 81 ? and is ascending upwards with a veloc

1.	A balloon is at a height of 81 ? and is ascending upwards with a velocity of 12 ?/?. A body of 2 ?? weight is dropped from it. If ? = 10 ?/?8, the body will reach the surface of the earth in a) 1.5 ? b) 4.025 ? c) 5.4 ? d) 6.75 ?
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A balloon is at a height of 81 ? and is ascending upwards with a velocity of 12 ?/?. A body of 2 ?? weight is dropped from it. If ? = 10 ?/?8, the body will reach the surface of the earth in a) 1.5 ? b) 4.025 ? c) 5.4 ? d) 6.75 ?

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PLZ MARK me BRRAINLIST plz plz mark me

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A balloon is at a height of 81 ? and is ascending upwards with a velocity of 12 ?/?. A body of 2 ?? weight is dropped from it. If ? = 10 ?/?8, the body will reach the surface of the earth in a) 1.5 ? b) 4.025 ? c) 5.4 ? d) 6.75 ?​

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A balloon is at a height of 81 ? and is ascending upwards with a velocity of 12 ?/?. A body of 2 ?? weight is dropped from it. If ? = 10 ?/?8, the body will reach the surface of the earth in a) 1.5 ? b) 4.025 ? c) 5.4 ? d) 6.75 ?