when a fluid flows out from a small hole in a vessel receives a backward thrust. A fluid flowing out from a small hole has a large velocity according to the equation of continuity
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Solution : Due to small area of cross-section of the hole, fluid flows out of the vessel with a large speed and thus the fluid possesess a large linear momentum. As no external force acts on the system, in order to conserve linear momentum, the vessel acquires a velocity in backward thrust result on the vessel.
- According to equation of continuity (area × velocity = constant), fluid flowing out of small hole acquires large velocity.
- This large velocity results in larger momentum.
- As there are no external forces acting here, the system follows law of conservation of momentum which leads to backward thrust on the vessel.
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because of rotation of earth on its own axis
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