Speed is the rate at which an object covers distance. It is calculated by dividing the distance traveled by the time taken to travel that distance. Speed can be expressed in units such as meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph).
Velocity is the rate at which an object changes its position. It is a vector quantity, which means that it has both magnitude (speed) and direction. Velocity can be expressed in units such as meters per second in a certain direction (m/s [N]).
The main difference between speed and velocity is that speed is a scalar quantity, while velocity is a vector quantity. This means that speed only has magnitude, while velocity has both magnitude and direction.
For example, if a car is traveling at a speed of 60 km/h, it means that it is covering 60 kilometers of distance every hour. However, if the car is traveling at a velocity of 60 km/h [N], it means that it is covering 60 kilometers of distance every hour in the northward direction.
Another difference between speed and velocity is that speed can never be negative, while velocity can be negative. This is because speed is only a measurement of how fast an object is moving, while velocity is a measurement of how fast an object is moving in a particular direction.
For example, if a car is traveling at a speed of 60 km/h, it means that it is covering 60 kilometers of distance every hour. However, if the car is traveling at a velocity of -60 km/h [N], it means that it is covering 60 kilometers of distance every hour in the southward direction.
