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Krishnadas
 one year ago
Best ResponseYou've already chosen the best response.0Reducing friction is one

ghazi
 one year ago
Best ResponseYou've already chosen the best response.2reducing friction reducing components obviously advancement in design reducing strain avoiding overload proper maintenance and a lot more

JFraser
 one year ago
Best ResponseYou've already chosen the best response.0reduced force is needed to use a machine, but a greater distance must be moved. Machines don't actually make work any less, they make the applied force less, so we think we're doing less work.
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