Question

Question #bf36a

Answer 1

If the collision is non-elastic, there are some loss in energy, therefore :

• The mechanical energy and the kinetic energy aren't conserved.

However :

• The momentum (`p = mv`) and the angular momentum (`L = rmv` or `L = I omega`) are still conserved.

In the case of a perfectly inelastic collision, the colliding masses will stick together; for the momentum, you would have something like :

`m_1v_1 + m_2v_2 = (m_1+m_2)v_3`.