Question

If Ankit travels a distance of $\pi R$ along the circumference of a circle with radius $R$, his displacement will be:

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

Answer 1

The correct option is A $2R$

Given radius of the circle is ${}^{\prime }{R}^{\prime }$.
Therefore, circumference of the circle is $2\pi R$
Distance traveled by Ankit is $\pi R$, which is equal to half the circumference of the circle.
$\therefore$ Ankit's displacement = diameter of the circle $=2R$.