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Grade: 10 

                        
a stone is thrown upward with a speed “u” from the top of a tower .it reaches the ground with velocity “3u”. the height of the tower is?
2 years ago

Answers : (1)

Arun
24730 Points 
							
Dear Student
 
Let H be the height of tower
V² = u² + 2*a *S
(-3u)² = u² + 2* (-g) (-H)
H = 8u²/2 g
= 4u²/g
 
Regards
Arun (askIITians forum expert)
2 years ago
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