what is the unit for measuring the speed at which a motor spins?

Question

what is the unit for measuring the speed at which a motor spins?

Answer 1

When listing the specifications of a motor, rpm (revolutions per minute) is usually used.

In physics, it is preferable to measure rotation rate in radians per second. This simplifies the equations for energy and angular momentum.

1 radian/sec = 30/pi rpm

Answer 2

The unit for measuring the speed at which a motor spins is typically revolutions per minute (RPM). To find this information, you can consult the motor's specifications or use a tachometer, which is a device specifically designed to measure rotational speed. A tachometer can be connected to the motor's shaft, and it will provide a real-time readout of the RPM. Additionally, there are also some motors that might have built-in speed sensors or encoders that can directly provide the RPM information.