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A large tank is filled with water ("dens...

A large tank is filled with water `("density" = 10^(3)kg//m^(3))`. A small hole is made at a depth 10m below water surface. The range of water issuing out of the hole Is R on ground. What extra pressure must be applied on the water surface so that the range becomes 2R `("take" 1 atm = 10^(5) Pa " and " g=10m//s^(2))` :

A

9 atm

B

4 atm

C

5 atm

D

3 atm

Text Solution

Verified by Experts

The correct Answer is:
D
`P=(F)/(A)=(2A rhov^(2))/(A)=2rhov^(2), R=vsqrt((2h)/(g)), R prop v, P prop v^(2), P prop R^(2)`
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