You drive due east at 77 km/h for 55 min . Then you follow a road going 60∘ south of east, going 96 km/h for another 28 min .
Find your total displacement.
x = 77*(55/60) + 96(28/60)cos 60
y = -96(28/60)sin 60
distance=sqrt(x^2+y^2)
tangent of angle south of east = |y|/x