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Question

When a ball is thrown up vertically with velocity v0, it reaches a maximum height of h. If one wishes to triple the maximum height, then the ball should be thrown with velocity.


A
3 v0
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B
3 v0
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C
9 v0
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D
32 v0
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Solution

The correct option is A 3 v0
Using the 3rd equation of motion,
v2u2=2as
Ov2=2ah
v2=2gh
(Upward is taken as positive)
hv2
to triple the maximum height, ball should be thrown with 3v
 

Physics

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