Question

A particle moves from A to B along the semicircular curve as shown in the figure. The ratio of distance covered by particle to its displacement is

• A. $\frac{\pi }{2}$
• B. $\frac{2}{\pi }$
• C. $\frac{\pi }{4}$
• D. $1:1$

Answer 1

The correct option is A $\frac{\pi }{2}$

Here,
displacement $=2R$
and distance $=\pi R$

The ratio $=\frac{\pi \mathrm{R/}}{2\mathrm{R/}}=\frac{\pi }{2}$