A liquid of density ρ is coming out of a hose pipe of radius 'a' with horizontal speed 'v' and hits a mesh. 40% of the liquid passes through the mesh unaffected. 30% looses all of its momentum and 30% comes back with the same speed. The resultant pressure on the mesh will be:
1
\({3\over4}\rho v^2\)
2
\({9\over10}\rho v^2\)
3
\({11\over8}\rho v^2\)
4
None of the above