Elastic Collisions: In the figure showing an isolated system, determine the character of the collision. The masses of the blocks, and the velocities before and after, are shown. The collision is
2.1 m/s
0.6 m/s
1.5 m/s 1.5 m/s
9 kg
3 kg
9 kg
3 kg
Before
After
perfectly elastic.
partially inelastic.
completely inelastic.
characterized by an increase in kinetic energy.
not possible because momentum is not conserved.