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Q.

When a ball is thrown up vertically with velocity υ0, it reaches a maximum height of h. If one wishes to triple the maximum height then the ball should be thrown with velocity

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a

3υ0

b

32υ0

c

3υ0

d

9υ0

answer is A.

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Detailed Solution

detailed_solution_thumbnail

we know maximum height is given by 

h=u22g  

u  ∝ h

Therefore initial velocity should be 3u0

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