Question

A cylindrical vessel of cross-sectional area, $s$, is left out in the rain in which water is falling vertically downward with the velocity, $v$, in the still air. When the wind starts blowing in North-East direction with velocity, $v$, the rate of collection of water in the vessel is

• A. $v.s$
• B. $\sqrt{2}v.s$
• C. $2v.s$
• D. $2\sqrt{2}v.s$

Answer 1

The correct option is A $v.s$

Vertical velocity does not change due to wind and number of drops in unit cross section remains same. Therefore, rate of collection of water in the vessel $=v.s$