The column is used to support the upper floor. If a force F = 80 N is applied perpendicula...

The column is used to support the upper floor. If a force F = 80 N is applied perpendicular to the handle to tighten the screw, determine the compressive force in the column. The square-threaded screw on the jack has a coefficient of static friction of µs = 0.4, mean diameter of 25 mm. and a lead of 3 mm.