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A ball is thrown vertically down with ve...

A ball is thrown vertically down with velocity of `5m//s`. With what velocity should another ball be thrown down after 2 seconds so that it can hit the `1^(st)` ball in next 2 second.

A

`40m//s`

B

`10m//s`

C

`15m//s`

D

`20m//s`

Text Solution

Verified by Experts

The correct Answer is:
A
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