1. Collisions

2. There are two types of collisions…
1. Elastic (a collision in which there is no heat or permanent deformation)
2. Inelastic (a collision where two or more objects become tangled or coupled together)

3. Possible formulas for collision…
m1v1 + m2v2 = mfvf
mivi = m1v1 + m2v2
m1v1 + m2v2 = m1av1a + m2av2a

4. Example 1:
Train car A with a mass of 5500kg traveling at 4m/s collides with and couples train car B which is at rest. Assuming car B is of equal mass, what is the final velocity of the joined cars?

5. Example 2:
A whale with a mass of 200kg moving at 0.5m/s North eats a blind tuna with a mass of 50kg that is swimming South at 10m/s . What is the momentum of the system after lunch? What is the whales new apparent velocity?

6. Example 3:
If a 2000kg car traveling east at 20m/s collides with another car (2000kg) traveling north at 30m/s, what is the resulting momentum of the collision?