Question

Two particles of mass m, constrained to move along the circumference of a smooth circular hoop of equal mass m, are initially located at opposite ends of a diameter and given velocities $v_0$ shown in the figure. The end arrangement is located in gravity free space. Their speed just before collision is

• A. $\frac{1}{\sqrt{3}}{v}_0$
• B. $\frac{\sqrt{3}}{2}{v}_0$
• C. $\frac{2}{\sqrt{3}}{v}_0$
• D. $\frac{\sqrt{7}}{3}{v}_0$

Answer 1

The correct option is D $\frac{\sqrt{7}}{3}{v}_0$

Option D