Physics-
General
Easy
Question
A fire hydrant delivers water of density r 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 section throughout. The force exerted by the water on the corner of the hydrant is
VL
- zero
- 2VL
VL
VL
VL
VL
The correct answer is: VL
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