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An object fals from a bridge that is 45 m above the water. It falls directly into a small row-boat moving with constant velocity that was 12 m from the point of impact when the object was released. What was the speed of the boat ? `(g=10ms^(-2))`

A

`2 m//s`

B

`3 m//s`

C

`5 m//s`

D

`4 m//s`

Text Solution

Verified by Experts

The correct Answer is:
D

`t=sqrt((2h)/(g)),s=vxxt`
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