Question

After perfectly inelastic collision between two identical particles moving with same speed in different directions. the speed of the particles becomes half the initial speed. The angle between the velocities of tie two before collision is

• A. ${60}^o$
• B. ${45}^o$
• C. ${120}^o$
• D. ${30}^o$

Answer 1

The correct option is C ${120}^o$