Velocity

Velocity is a vector quantity that describes the rate at which an object changes its position. It is different from speed as velocity includes both the speed of an object and its direction of motion.

Calculating Velocity

Velocity is calculated using the formula:

Velocity (v) = Displacement (Δx) / Time (Δt)

Where Δx is the change in position and Δt is the change in time.

Units of Velocity

The standard unit of velocity is meters per second (m/s) in the metric system, and miles per hour (mph) in the imperial system.

Velocity and Acceleration

Acceleration is the rate of change of velocity with respect to time. If an object's velocity is changing, it is said to be accelerating.

Graphing Velocity

Velocity can be represented graphically, with velocity on the y-axis and time on the x-axis. The slope of the velocity-time graph represents the acceleration of the object.