Question

A man is walking due north at a speed of 2 km/h for

two hours and then turns towards west at a speed of

3 km/h for one hour. Find the average speed and

average velocity.​

Answer 1

Answer:

Magnitude by displacement

2hr=

4

2

+3

2

=5km

Averagev=

2

5

=2.5

hr

km

.

θ=tan

4

3

=37

∘

2hr=42+32=5kmAveragev=52=2.5kmhr.θ=tan⁡34=37∘