Question

You walk 40 m West and then 40 m North. 

1. Sketch a vector diagram
2. The magnitude of the total distance is __ m 
3. The magnitude of the resultant displacement is __ m.  In a direction __ ° North of West.

Answer 1

1)

2)

$$d=40+40=80\ m$$

3)

$$s=40\sqrt{2}=56.6\ m\\$$

The magnitude of the resultant displacement is 56.6 m. In a direction 45 ° North of West.