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The 3 lever classes extend to rope and pulley; but just as with hard levers(way i keep straight): All cases look at stationary point as pivot and moving input/outputs of the simple machine. If non moving pivot is between moving input/output(so input output MUST move in opposite directions...

Slow Motion Perfect! Easier to look good and fast plowing thru; An old sleight of hand magician at Riley's Trick Shop in Chicago(gramps knew someone there) taught me he just looked fast, cuz so clean and directed got job done w/o problem, had trained so slow mo camera couldn't catch his trix...