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A water barrel stands on a table of heig...

A water barrel stands on a table of height `h`. If a small holes is punched in the side of the barrel at its base, it is found that the resultant stream of water strikes the ground at a horizontal distance `R` from the table. What is the depth of water in the barrel?

A

`R//2`

B

`R^(2)//4h`

C

`R^(2)//h`

D

`h//2`

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