A jet of liquid of cross-sectional area $'a'$ strikes a wall making angle $\theta $ with wall. The water strikes with the wall with velocity $v$ and rebounds elastically. If density of liquid be $\rho $, the normal force on the wall is
A jet of liquid of cross-sectional area $'a'$ strikes a wall making angle $\theta $ with wall. The water strikes with the wall with velocity $v$ and rebounds elastically. If density of liquid be $\rho $, the normal force on the wall is
- A
$2a{v^2}\rho \,\sin \,\theta $
- B
$2a{v^2}\rho \,\cos \,\theta $
- C
$2av\rho \,\sin \,\theta $
- D
$2av\rho \,\cos \,\theta $
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- [AIIMS 2018]
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