what is velocity
Velocity is the rate of change of displacement with respect to time. It describes how fast an object moves in a particular direction. Velocity is a vector quantity because it has both magnitude and direction.
Formula:
Velocity = Displacement ÷ Time
SI Unit:
The SI unit of velocity is meter per second (m/s).
Example:
If a car travels 100 meters east in 10 seconds:
Velocity = 100 ÷ 10
= 10 m/s east
Types of Velocity
Uniform velocity
Variable velocity
Average velocity
Instantaneous velocity
Difference Between Speed and Velocity
| Speed | Velocity |
|---|---|
| Scalar quantity | Vector quantity |
| Only magnitude | Magnitude and direction |
| Distance based | Displacement based |
In conclusion, velocity measures how quickly an object changes its position in a specific direction.