dm/h²(decimetre per hour squared)

Unit dm/h² (decimeter per hour squared) is a non-standard unit used to express acceleration, which is a measure of how the velocity (speed) of an object changes over time.

In this specific unit, acceleration is expressed in terms of change in velocity in decimeters (1 decimeter = 0.1 meters) per hour squared. This means if an object has an acceleration of 1 dm/h², its velocity will increase by 1 decimeter per hour every hour. This is a rather small and unusual unit for acceleration and not commonly used in mainstream physics or engineering practice. The standard unit for acceleration is meters per second squared (m/s²).

µm/s²(micrometre per second squared)

The unit µm/s² (micrometre per second squared) is a derived unit of acceleration in the International System of Units (SI). It is used to express the rate of change of velocity with respect to time over a distance scale of micrometres.

One micrometre per second squared (1 µm/s²) represents an acceleration where an object's velocity changes by one micrometre per second (1 µm/s) every second. In other words, it signifies how quickly an object's velocity increases or decreases over time on a very small scale, in the order of micrometres (1 µm = 10^-6 meters).

This unit is typically used in fields such as microfluidics, micro-robotics, or any scientific research that involves the study of extremely small-scale motion and acceleration.