A plane is flying at a speed of 1000 km/h relative to the air (as shown in the figure) from Riyadh to Kuwait separated by a distance of 520 km directly northward. If there is wind blowing from west to east at a constant speed of 160 km/h.
(a) What is the plane’s speed relative to the ground ?
(b) At what angle west of north should the plane fly?
