Question

4. A particle is in circular motion, what is its displacement in one circumference?
A) Zero
B) 2πr
C) πr^2
D) 2r
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Answer 1

Given:

A particle is in circular motion.

To find:

Displacement in one circumference?

Calculation:

First of all, let's define DISPLACEMENT:

• Displacement is the shortest length between the starting and the stopping point of an object.

So, when the particle in circular motion completes a full circumference (or a full trajectory), its starting point and the stopping point is the same. Hence, there is apparently no length between the starting and stopping point.

So, DISPLACEMENT is zero.

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• If the question had asked for displacement in one quarter, it would have been r√2.

• If the question had asked for displacement in one half, it would have been 2r.

$\star$ Hope It Helps.

Answer 2

★ Question Given :

A particle is in circular motion, what is its displacement in one circumference?

• ⇢ A) Zero
• ⇢ B) 2πr
• ⇢ C) πr²
• ⇢ D) 2r

★ Required Solution :

✰ Info Given to us :

• ➦ particle is in circular motion , so motion Will be Circular motion

✰ According to Question :

• ➦ Particle is moving along Circumference of Circle it is coming back to the same point where it started the motion. so particle starting point and stopping or resting point is same

• ➦ Therefore there the displacement is Zero

✰ Displacement :

• ➦ Displacement is the shortest distance between stopping point and starting point

★ On Final Note :

• ➲ A particle is in circular motion, its displacement in one circumference Will be Zero

• ➲ Option (a) is correct

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