What units are used to measure velocity?

Velocity is a measure of the rate of change of position with respect to time and can be expressed in various units depending on the context. The most commonly used unit of velocity in scientific contexts is meters per second (m/s), but when it comes to vibration analysis, it is frequently measured in terms of displacement and combines both amplitude and frequency information.

The option that includes mm/s rms (millimeters per second root mean square) and in/s pk (inches per second peak) provides specific measurement formats that are directly relevant in vibration analysis. These formats are essential for accurately assessing vibrations in machinery and equipment, as they help engineers and technicians to evaluate the condition and performance of mechanical systems.

Other options, while valid units of velocity, do not specifically pertain to vibration analysis. Therefore, the inclusion of mm/s rms and in/s pk emphasizes the focus on practical applications in the field of vibration measurement and condition monitoring, making it the most appropriate choice.