1. Momentum

2. Quick Video

3. Momentum Momentum can be defined as “inertia in motion."
It is moving mass
All objects have mass; so if an object is moving, then it has momentum
Momentum depends on two things:
mass and velocity

4. Momentum Momentum = mass X velocity p = mv
where p = momentum, m = mass and v=velocity
Unit for Momentum: Kg m/s

5. Which has more momentum and why?
Discuss with your neighbor and answer the above questions
A 1400 kg truck traveling at 50 m/s
Or a 500 kg car traveling at 50 m/s

6. Which has more momentum and why?
Discuss with your neighbor and answer the above questions
A 1400 kg truck traveling at 10 m/s
Or a 500 kg car traveling at 50 m/s

7. Which has more momentum and why?
Discuss with your neighbor and answer the above questions
A 1400 kg truck traveling at 0 m/s
Or a 500 kg car traveling at 0 m/s

8. When will the truck and the car have the same momentum?
Assume the 1400 kg truck is still traveling at 50 m/s

9. White board practice
1.  Calculate the momentum of a 0.15 kg ball that is moving toward home plate at a velocity of 40m/s.

10. White board practice
2.  Which has greater momentum, a 2.0kg hockey puck moving east at 2.5m/s or a 1.3kg hockey puck moving south at 3.0m/s?

11. White board practice
3.  A track athlete throws a 2kg discus into a field with a velocity of 21m/s.  What is the momentum of the discus?

12. White board practice
4.  Calculate the momentum of a 700g ball that is rolling down a ramp at 4.6m/s.

13. White board practice
5.  A cannon fires a 40.5kg shell toward a target and the shell moves with a velocity of 120m/s.  Calculate the shell's momentum.

14. Summary video