![]() If speed does change, the average (mean) speed can be calculated: For example speed could be measured in m/s, distance in metres and time in seconds. Remember, when using any formula, the units must all be consistent. ![]() The following is a basic but important formula which applies when speed is constant (in other words the speed doesn't change): This section covers travel graphs, speed, distance, time, trapezium rule and velocity.
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