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When a ball is thrown up vertically with...

When a ball is thrown up vertically with velocity `v_(0)`, it reaches a maximum height of h. If one wihes to trip the maximum height, then the ball should be thrown with velocity.

Text Solution

Verified by Experts

The correct Answer is:
(A)-r, (B)-p, (C)-s, (D)-q`
Velocity & height of the bolloon after 2 sec:
`v=0+10xx2=20 m//s uarr h=1//2xx10xx4=20 m`
Initial velocity of drop particle is equal to the velocity of balloon `=20 m`
`:' u_(s)=20 m//s a_(s)=g darr`
After further `2s v_(s)=0`
`:.` height `=(u_(s)+v_(s))/2xx2=20 m` from initial position of balloon
`:.` Height from ground `=20+2v=40 m`
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