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Answer :
The best motor for the above purpose is 3.5 kW.
The best motor for the above purpose is 3.5 kW. In electric motors, electrical energy is converted into mechanical energy. An electric motor produces force in the form of torque by the interaction between its magnetic field and the electric current flowing through its coils. As we know power is defined as the rate of work. Here you have to raise the curtains and defy gravity
so we have
Width = mgH = 193*10*7.5m
= 1418.5 years
Power = W/t
1418.5/5
= 2.8kW
So the best motor for the above purpose is 3.5 kW.
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