Motion in A Straight Line

Question: A stone thrown upward with a speed \[u\] from the top of the tower reaches the ground with a velocity \[3u\]. The height of the tower is



1) \[3{u^2}/g\]
2) \[4{u^2}/g\]
3) \[6{u^2}/g\]
4) \[9{u^2}/g\]
Solution: Explanation: Explanation
Motion under Gravity

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