Question

a car is moving in a circular path of radius 2m. Calculate both the distance and the magnitude of the displacement of the car after i) one complete revolution ii) one-half revolution iii) one-fourth revolution. What can you conclude about the relationship between distance and displacement?

Answer 1

Distance after one revolution

2Πr

Displacement after one revolution

0

Distance after half revolution

Πr

Displacement after half revolution

Πr

Answer 2

Hi dude, here's your solution,

Explanation:

Given, radius of the circular path=2m

Case 1:

Displacement=0

Distance=2πr

= 2×π×2

=12.6m (approx)

Case 2:

Displacement=Distance

Distance=12..6/2

=6.3m (approx)

Displacement=6.3m

Case 3:

Distance=Displacement

Distance=12.6/4 or 3.15/2

=3.15m

Displacement=3.15m