Question
A square threaded screw is used to lift a load W by applying a force F. Efficiency of square threaded screw is expressed as
Options :
The ratio of work done by W per revolution to work done by F per revolution
W/F
F/W
The ratio of work done by F per revolution to work done by W per revolution
Answer :
The ratio of work done by W per revolution to work done by F per revolution
Solution :
Given,
Square threaded screw, efficiency
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