A uniform rod AC of length l and mass m is kept on a horizontal smooth plane. It is free to rotate and move. A particle of same mass m moving on the plane with velocity v strikes the rod at point B making an angle 37 degree with the rod. The collision is elastic.
I am trying to solve the problem by conserving angular momentum of rod, linear momentum of rod and particle, and energy conservation.
My question is
- Can the angular momentum of Rod be conserved about point B although the point B is accelerated during collision?
- Does elastic collision mean that the Velocity of approach = velocity of seperation about Common Normal through point B?