Angular Speed
What is it?
Angular speed is the speed of a rotating body.
Give me an example!
Angular speed is measured in the number of complete turns a spinning wheel or top makes in one minute. This is expressed as revolutions (spins) per minute, or RPM.
Have you ever seen a tachometer in a car? Tachometers measure the number of RPMs the crankshaft of the engine is doing -- in other words, the speed of the motor, not the speed of the wheels. This helps drivers know when to shift gears to make the most efficient use of the motor's output as RPMs change.
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