- Momentum is commonly defined as mass in motion. It is a vector quantity with a SI unit of kilogram-meter per second, calculated by the equation below.
- Momentum is closely connected to Newton's second law since acceleration is equal to change in velocity over change in time
- By connecting Newton's second law with momentum, we can derive a new statement that change in momentum is equal to impulse, represented by the letter I.
- Area under curve = change in momentum
- Gradient = acceleration
- Linear graph = constant acceleration
- Increasing and positive gradient = increasing acceleration, velocity increases at a faster rate
- Decreasing and positive gradient = decreasing acceleration, velocity increases at a slower rate
- Increasing but negative gradient: increasing acceleration, speed decreases at a faster rate
- Decreasing but negative gradient: increasing acceleration, speed decreases at a slower rate
