wikiHow Calculating Velocity Calculator Velocity is defined as the rate of change of an object's position with respect to time. The formula for calculating velocity is: velocity = (change in displacement) / (change in time) where: velocity = the speed and direction of an object (in meters per second or other appropriate units) change in displacement = the difference in position of the object between two points (in meters or other appropriate units) change in time = the time interval during which the change in displacement occurs (in seconds or other appropriate units) To calculate velocity, you need to measure the change in displacement and the time interval during which the change occurs. Here are the steps to calculate velocity: 1. Determine the starting position of the object and the ending position of the object. 2. Calculate the change in displacement by subtracting the starting position from the ending position. 3. Determine the time interval during which the change in displacement occurs. 4. Divide the change in displacement by the time interval to find the velocity. Example: Suppose you measure the position of a car at two points in time: at time 1, the car is at position 0 meters, and at time 2, the car is at position 100 meters. If the time interval between the two measurements is 10 seconds, what is the velocity of the car? 1. Calculate the change in displacement: 100 meters - 0 meters = 100 meters 2. Determine the time interval: 10 seconds 3. Divide the change in displacement by the time interval: 100 meters / 10 seconds = 10 meters per second Therefore, the velocity of the car is 10 meters per second. Page