Question

A body is moving along a circular path of radius $r$. What is the distance and displacement of the body when it completes two and a half revolutions?

• A. Distance is $5\pi r$ and displacement is $2\pi r$
• B. Distance is $2\pi r$ and displacement is $5\pi r$
• C. Distance is $2r$ and displacement is $2r$
• D. Distance is $5\pi r$ and displacement is $2r$

Answer 1

The correct option is D Distance is $5\pi r$ and displacement is $2r$


Distance $=2\pi r+2\pi r+\pi r$
Distance $=5\pi r$
Displacement $=2r$