An airplane trvels with a velocity of 200 mi/h in a direction 30 deg. west of north of 1.50 h. How far north and how far west is it from its starting point?
d = 200mi/h[120o] * 1.5h = 300mi[120o]
X = 300*cos120 = -150 mi = 150 mi West.
Y = 300*sin120 = 260 mi North.