# MrFlint.com

The online companion to your favorite class.

- Defining impulse and defining momentum - their units and
- Impulseâ€“Momentum theorem and its relationship to Newton's Second Law
- Edgerton's work in high speed photography

- Managing forces in collisions for safety purposes: airbags, crumple zones, padding, etc.
- Maximizing velocity as a result of collisions: baseball bat collisions

- Some more example problems
- Intro. to Momentum Lab

- Momentum lab

- P. 219; 23-28, 31 due
- Hand in homework problems today
- A few words about inelastic collisions and the law of conservation of momentum: A frictionless cart with mass 10.0 kg moving at 4.0 m/s collides with another cart at rest with a mass of 6.0 kg. Determine the final velocity of the system.
- Continue working on Momentum lab

- Law of Conservation of Momentum examples
- 120 kg boy moving at 1.2 m/s collides with a 100 kg girl moving at 0.80 m/s. Determine the final velocity.
- 120 kg boy moving at 1.2 m/s collides with a 100 kg girl moving at -0.80 m/s. Determine the final velocity.

- P. 219, 34-37 due
- Go over problems together

- Momentum Lab due

- Return/Review last problem set
- Help with some problems
- Work on problems in class

- P. 220, 40-44 due
- Go over problems in class

- P. 220, 45-48 due
- Go over problems in class

- Chapter 9 Review due
- Go over problems in class

- Chapter 9 Test

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