Velocity is a measure of an object's speed and direction of motion. It is a vector quantity, meaning it has both magnitude (speed) and direction.
Velocity takes into account the direction of an object's motion, while speed only measures how fast an object is moving regardless of direction. For example, a car traveling at 60 miles per hour due east has a different velocity than a car traveling at 60 miles per hour due west.
Velocity is calculated by dividing the change in an object's position (displacement) by the time it took to make that change. It can be represented by the equation v = Δx/Δt, where v is velocity, Δx is displacement, and Δt is time.
The units for velocity are distance per time, such as meters per second or miles per hour. The specific unit used depends on the system of measurement being used, such as the metric system or the imperial system.
Distance is a measure of the total amount an object has moved, while velocity is a measure of how fast and in what direction an object is moving. Distance and velocity are related through the equation d = vt, where d is distance, v is velocity, and t is time. This equation can be used to calculate the distance an object has traveled if its velocity and time are known.