Question

A particle moving in a circular path of radius 'r'. The displacement after half a circle would be _____​

Answer 1

Answer:

displacement after half circle is 2r

Answer 2

Required information :-

Circular motion => movement of a body following a circular path.

Displacement => total distance between the start and ending points, it may be easily estimated once the particle has covered half of the circle by measuring the distance between the beginning and final points.

Therefore, after half-circle displacement => AB = OA + OB

Given :-

• OA = r
• OB = r
• Therefore, AB = r + r
• => AB = 2r

Final answer :-

Hence, the displacement after completing a half-circle is 2r.