Manipal MET2012PhysicsCenter of Mass, Momentum and Collision
A mass 3 m , initially at rest at the origin explodes into three fragments of equal mass. Two of the fragments have speed v each and move perpendicular to each other. The third fragment will move with a speed
Options
- Av 2
- Bv 2
- Cv
- Dv 2
Correct answer
D. v 2
Step-by-step solution
From law of conservation of momentum, aligned & m v-m v^ =0 ... (i) & m v-m v^ =0 ... (ii) aligned From Eqs. (i) and (ii), we get aligned & =45^ & v^ = v =v 2 aligned