a car moves 20km towards north then 35km angle of 60 degree west of north.Determine the magnitude of displacement from initial point.

Answer 1

Add the two vectors. I recommend adding north (y) and east (+x) components

You end up with y coordinate
y = 20 + 35 cos 60
and x ccordinate
x = -35 sin 60

The displacement magnitude is
sqrt (x^2 + y^2)

I leave you to compute that number