1. Bellringer/11.3 Notes
The dog named Jam is heavier than the dog named Jelly. Copper weighs more than Brandy but less than Pumpkin. Brandy weighs more than Jelly. Pumpkin weighs less than Jam.
List the dogs in the order of their weights, starting with the heaviest.
The heaviest dog is Jam, the next heaviest is Pumpkin, the next heaviest is Copper, the next heaviest is Brandy, and the least heavy (or the lightest) is Jelly.

2. Section 3
Newton’s 3rd Law

3. I. Action & Reaction Forces
Newton’s 3rd Law of Motion:
For Every action, there is an equal and opposite action.

4. Downward force on the air from the wings.
Upward force on the wings from the air.
Forces are:
1. Equal & opposite directions
2. Not acting on the same object

5. Momentum = mass x velocity
II. Momentum
Momentum – a characteristic of an object in motion.
Momentum = mass x velocity

6. Momentum = mass x velocity
5,500 kg
1,800 kg
Both going 96.5 km/h (60 mph)
Momentum = 530,750 kg m/s
Momentum = 173,700 kg m/s
Momentum = mass x velocity

7. The truck is still going 96.5 km/h (60 mph)
5,500 kg
1,800 kg
For the momentum to be the same, the car must have a velocity of km/h ( mph)
The truck is still going 96.5 km/h (60 mph)
Momentum = mass x velocity