Q 2456723674.     A ball is dropped from a bridge at a height of
`176.4` m over a river. After `2` s, a second ball is
thrown straight downwards. What should be
the initial velocity of the second ball so that
both hit the water simultaneously ?

UPSEE 2009
A

`2.45 ms^(-1)`

B

`49 ms^(-1)`

C

`14.5 ms^(-1)`

D

`24.5 ms^(-1)`

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