Understanding Distance, Displacement, Speed, and Velocity

Distance is a scalar measurement indicated in units of length, while displacement is a vector measurement that describes distance relative to an origin, incorporating direction. Speed is calculated as distance divided by time, whereas velocity, being a vector, describes speed relative to an origin and can be positive or negative based on movement. For example, if a car travels in one direction for 30 minutes at an average velocity of 20 km/h, the change in position can be calculated as 10 km. Additionally, the slope of a distance-time graph represents speed, with the steepness indicating relative speed.