A car is driven 125.0 km due west then 60.0 km due south. What is the magnitude of its displacement?

displacement = 138.65 km

Explanation:

here's the solution

displacement is the shortest distance from the starting point to the end, and here the forms a right angled triangle whose other sides are 125 km and 60 km , and displacement is hypotenuse

So, by pythagoras theorem ,

=》

=》

=》

=》

=》

so, hypotenuse = displacement = 138.65 km

if they have a finite resultant