Motion in A Straight Line

Question: 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



1) 1.5 s
2) 4.025 s
3) 5.4 s
4) 6.75 s
Solution: Explanation: Explanation
Motion under Gravity

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