Question

An object is moving with uniform speed in a circle of radius r calculate the distance and displacement.
When it completes half the circle.
When it completes full circle.
What type of motion does the object posses.
(Justify your answer )

Answer 1

when it completes half circle,
distance=πr
displacement=2r

when it completes full circle,
distance=2πr
displacement=0

the object posses circular motion because it is moving in a circular path.

Answer 2

Hey there !

Radius = r

a)When it completes half circle
Distance = πr
Displacement = 2r [ diameter of the circle ]

b) When it completes full circle
Distance=2πr
Displacement = 0 [ Initial position and final position is same ]

The object posses circular motion .