Question

If a body is moving in circular path: find its distance and displacement covered after completion of full round and half round.​

Answer 1

Answer:

Distance travelled in half a rotation of a circular path is equal to the circumference of semicircle i.e.=πR.

Displacement = diameter of circle =2R.

Answer 2

Answer:

In Case of Full Round -

• Distance - circumference of the circle.
• Displacement - 0 (because the initial and the final position is same)

In Case of Half round -

• Distance - circumference of semicircle.
• Displacement - diameter of the circle (because the initial and the final position lies opposite to each other).

Explanation:

• Distance refers to the total length of pathway covered from the initial to the final position.
• Displacement refers to the shortest pathway covered from the initial to the final position.