reaches the ground with a speed 3u. The height of the tower is :

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A stone is thrown vertically upwards with an initial speed u from the top of a tower, reaches the ground with a speed 3u. The height of the tower is :
18
Oct
A stone is thrown vertically upwards with an initial speed u from the top of a tower, reaches the ground with a speed 3u. The height of the tower is : A stone is thrown vertically upwards with an initial speed u from the top of a tower reaches the ground with a speed 3u. [...]
Posted in: Arihant Physics by D.C Pandey , Chapter 3 - Motion in One Dimension , Volume 2 ,
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