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A fire hydrant delivers water of density...

A fire hydrant delivers water of density `rho` at a volume rate L. The water travels vertically upward through the hydrant and then does `90^@` turn to emerge horizontally at speed V. The pipe and nozzle have uniform cross-seciton throughout. The force exerted by the water on the corner of the hydrant is

A

`rhoVL`

B

zero

C

`2rhoVL`

D

`sqrt(2)rhoVL`

Text Solution

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The correct Answer is:
D
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RESONANCE ENGLISH-FLUID MECHANICS-Exercise- 2 PART - I
  1. A fire hydrant delivers water of density rho at a volume rate L. The w...

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  2. A tube in vertical plane is shown in figure. It is filled with a liqui...

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  3. A U-tube of base length l filled with the same volume of two liquids o...

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  4. A narrow tube completely filled with a liquid is lying on a series of ...

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  5. An open pan P filled with water (density rho(W)) is placed on a vertic...

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  6. In the figure shown, water is filled in a symmetrical container. Four ...

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  7. Figure shows a weighing-bridge, with a beaker P with water on one pan ...

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  8. A cylindrical container of radius 'R' and height 'h' is completely fil...

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  9. A uniform rod OB of length 1m, cross-sectional area 0.012 m^(2) and re...

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  10. A non-uniform cylinder of mass m, length l and radius r has its centre...

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  11. Assertion : A solid object of iron is dipped in water, both are at sam...

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  12. A liquid is kept in a cylindrical vessel which is rotated along its ax...

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  13. A block is partially immeresed in a liquid and the vessel is accelerat...

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  14. A portion of a tube is shown in the figure. Fluid is flowing from cros...

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  15. There is a small hole in the bottom of a fixed container containing a ...

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  16. The velocity of the liquid coming out of a small hole of a vessel cont...

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  17. Two water pipes of diameters 2 cm and 4 cm are connected in series i.e...

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  18. A large open tank has two holes in the wall. One is a square hole of s...

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