Question

A particle is moving in a circular path of radius 'r'. Find the distance travelled and displacement after the particle covers half a circle.​

Answer 1

Answer:

The answer will be 2r.

After the particle covers half path of the circle, the displacement can be easily calculated by measuring the distance between initial and final points. Displacement after half circle = AB=OA + OB Hence, the displacement after half circle is 2r.

Explanation:

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Answer 2

Answer:

distance =2πr/2

Displacement = 2r