The wind appears to blow form the north to a man movinf in the north -east direction. When he doubles his velocity the wind appears to move in the direction `cot^(-1)` 2 east of north. Find the actual direction of the wind.

To a person travelling due East with velocity u the wind appears to blow from an angle alpha North of East. When he starts travelling due North with velocity 2 u,the wind appears to blow from an angle beta North of East. Find the true direction of the wind.

A person travelling east wards at the rate of 4 km h^(-1) finds that the wind seems to blow directl from the borth . On dubling ins speed, the wind appears to come from 45^@ north of west. Find the actual velocity of the wind.

In north east monsoon season the wind blows from direction