January 1, 1

Kinematics

Some terms

Scalar
- A directionless quantity, magnitude only
  - Speed
  - Distance
Vector
- A quantity with direction and magnitude
  - Velocity
  - Acceleration
  - Displacement
Displacement
- Difference between final and initial positions
- $\Delta d = d_f-d_{i}$
Velocity
- Change in position over time
- Average velocity ($\bar{v}$)
- $\bar{v}=\frac{d}{t}$
- $\bar{v}=\frac{v_f+v_i}{2}$
Acceleration
- Change in velocity over time
- $a=\frac{\Delta v}{\Delta t}$