Rain is falling vertically downwards with the velocity of 30m/s, a wind blows from north to south direction with 10m/s then at what angle should the umbrella of the person be held and in which direction.

Question

Accepted Answer

$	an^{-1}\left(\frac{1}{3} ight)$ vertical towards south

Answer

$	an^{-1}\left(\frac{1}{3} ight)$ vertical towards north

Answer

$\cos^{-1}\left(\frac{1}{3} \right)$ vertical towards north

Answer

$\cos^{-1}\left(\frac{1}{3} \right)$ vertical towards south