Fluid MechanicsHard

Question

A fire hydrant (as shown in the figure) delivers water of density r at a volume rate L. The water travels vertically upward through the hydrant and then does 900 turn to emerge horizontally at speed V. The pipe and nozzle have uniform cross-section throughout. The force exerted by the water on the corner of the hydrant is

Options

A.ρVL
B.zero
C.2 ρVL
D.√2 ρVL

Solution

Fth = = = √2V [ρ L] = √2 ρVL

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