Question

A particle moves with a speed v in a circle of radius R. The particles reach from A to B as shown in figure.

The Y component of average velocity is -

• A. $\frac{2v}{\pi}$
• B. $- \frac{v}{\pi}$
• C. $- \frac{2v}{\pi}$
• D. Zero

Answer 1

Answer: (B)

$- \frac{v}{\pi}$

Answer 2

Time taken = $\frac{\pi R}{v}$

Displacement in Y direction = – R

Component of Average velocity

= $\frac{- R}{\pi R/v}$ = $- \frac{v}{\pi}$