Two cars $A$ and $B$ move along a concentric circular path of radius $r_A$ and $r_B$ with velocities $v_A$ and $v_B$ maintaining constant distance, then $\frac{v_A}{v_B}$ is equal to

• A

  $\frac{r_B}{r_A}$
• Correct answer
  B

  $\frac{r_A}{r_B}$
• C

  $\frac{r_A^2}{r_B^2}$
• D

  $\frac{r_B^2}{r_A^2}$

Hence, the correct answer is option: 'B'.