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A liquid of density ρ is coming out of a hose pipe of radius a with horizontal speed ν and hits a mesh. 50% of the liquid passes through the mesh unaffected. 25% looses all of its momentum and 25% comes back with the same speed. The resultant pressure on the mesh will be:

1. 2 4 3 ρν
2. 2 4 1 ρν
3. 2 2 1 ρν
4. 2 ρν

Correct answer: 2 4 3 ρν

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