Question

A particle is moving in a circular path of radius $R$, the displacement of the particle after completing half of the circular path will be -

• A. Zero
• B. $\pi R$
• C. $2R$
• D. $2\pi R$

Answer 1

The correct option is C $2R$

We know that the displacement is defined as the shortest distance between the initial position and the final position of a moving particle.

Here, the particle is moving from a position $A$ to another position $B$ in a circular path.

So, the shortest path is the diameter of the circular path.

Hence, displacement,
$AB=R+R=2R$