What is the output from differential screws when pitch of the two screws is 12mm and 8mm? Also the nut is rotated by applying a force of 120N at a radius of 300mm and the two screws remain stationary. The torque of raising and lowering for the two screws is 5k N-mm and 2.5k N-mm where k is the effective axial weight on the screw.
(a) 13200 N-mm
(b) 15200 N-mm
(c) 19200 N-mm
(d) 17200 N-mm
This question stumped me in my coursework.
This question is part of the Screw Jack concept in unit Threaded Joints of Machine Design