1. Symbol:
- v is the most common symbol used to represent velocity.
2. Units:
- The standard unit for velocity is meters per second (m/s).
- Other units include kilometers per hour (km/h), miles per hour (mph), etc.
3. Direction:
- You need to specify the direction of the velocity.
- This can be done using:
- Words: "5 m/s to the east", "20 km/h upwards"
- Angles: "30° north of east"
- Coordinate system: " (2 m/s, 3 m/s)" where the first number represents the horizontal component and the second the vertical component.
Examples of correct velocity labels:
* v = 10 m/s east
* v = 25 km/h at 30° north of west
* v = (-5 m/s, 12 m/s)
Incorrect labels:
* v = 15 m/s (Missing direction)
* v = 20 km/h north (Missing the symbol 'v')
Always make sure to include both magnitude and direction when labeling velocity.
