A balloon is at a height of 81 m and is ascending upwards with a veloc – McqOptions

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1.	A balloon is at a height of 81 m and is ascending upwards with a velocity of 12 m/s. A body of \[2kg\] weight is dropped from it. If \[g=10\,m/{{s}^{2}}\], the body will reach the surface of the earth in [MP PMT 1994]
A.	1.5 s
B.	4.025 s
C.	5.4 s
D.	6.75 s
Answer» D. 6.75 s

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