Define Speed in Rotating Machines: Answer & SI Units

[Solidsam]

electronics question
Define the term “Speed” as employed in rotating machines, and state its (S.I)
units.

anyone know the answer? is it rad per second?

 

[Square]

I suspect it's angular velocity, which indeed has the unit rad/s.

 

[Solidsam]

Explain why “Torque-Speed” matching is important in designing motor-driven
machines. Illustrate your answer with torque-speed plots characteristic of:

i) A fan load

ii) A high static friction load

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