Motor Lifting a Mass#

A motor with an efficiency of \({{params_e}}\) is rotating a \({{params_r}} \ \rm{m}\) radius wheel at \(\dot \theta = {{params_RPM}} \ \rm{RPM}\) to lift a \({{params_m1}} \ \rm{kg}\) mass.

A motor with a wheel of radius r pulling a rope that is lifting a mass m1.

Part 1#

How much power does the motor consume?

Answer Section#

Please enter in a numeric value in W.

Part 2#

After adding an \({{params_m2}} \ \rm{kg}\) load, you notice the wheel spins slower. The power consumption does not change. What is the new RPM?

Answer Section#

Please enter in a numeric value in RPM.

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.