Determine the magnitude of the horizontal force P that must be applied to the handle of the

Question:

Determine the magnitude of the horizontal force P that must be applied to the handle of the bench vise in order to produce a clamping force of 600 N on the block. The single square-threaded screw has a mean diameter of 25 mm and a lead of 7.5 mm. The coefficient of static friction is ?_s = 0.25.