Question

A stream of a liquid of density $ρ$ flowing horizontally with speed $v$ rushes out of a tube of radius $r$ and hits a vertical wall nearly normally. Assuming that the liquid does not rebound from the wall, the force exerted on the wall by the impact of the liquid is given by

• A. $\pi rρv$
• B. $\pi rρv^2$
• C. $\pi r^2ρv$
• D. $\pi r^2ρv^2$

Answer 1

Answer: (D)

$\pi r^2ρv^2$

Answer 2

The correct option is (D): $\pi r^2ρv^2$.