Question

A particle is moving in a circular path of radius r. Its displacement after moving through half the circle would be :

• A. Zero
• B. $r$
• C. $2r$
• D. $\frac{2}{r}$
  

Answer 1

Answer: (C)

$2r$

• Displacement is the minimum distance between the initial position and final position.
  
• After moving half circle (A to B) displacement will be AB
• AB is diameter i.e. $2r$
• Option C is correct.