A person travelling eastward with a speed of `3 kmh^(-1)` finds that wind seems to blow from north. On doubling his speed, the wind appears to flow from north-east. Find the magnitude of the actual velocity 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.

A man travelling towards east at 8km/h finds that the wind seems to blow directly from the north On doubling the speed,he finds that appears to come from the north-east.Find the velocity of the wind.

A plane is travelling eastward at a speed of 500 kmh^(-1) . But a 90 km h^(-1) wind is blowing southward. What is the direction and speed of the plane relative to the ground ?

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 hydrogen is flying eastward with speed 12 m s^(-1) , when wind starts blowing from north to south with speed 5 m s ^(-1) what is the resultant velocity of balloon ?

A steamer is moving due east with 36km/h .To a man in the steamer the wind appears to blow at 18km/h due north.The speed of the wind is