Question

Explain velocity with example.

Answer 1

Step 1: Definition of Velocity

1. Velocity is defined as the displacement traveled by an object per unit of time.
2. The SI unit of velocity is $m/s$.
3. Velocity is a vector quantity.
4. Instantaneous velocity can also be determined by calculating the slope of a graph between displacement and time.
5. If $D$ is the displacement and $t$ is the time taken, then velocity can be mathematically expressed as, $v=\frac{D}{t}$.
6. The slope of the given graph gives us the velocity.

Step 2: Example of Velocity

1. A car traveling at a particular speed in a given direction is an example of velocity.
2. Consider a uniform circular motion with constant speed. In this type of motion since the direction of the motion is constantly changing we cannot call it uniform velocity.