Question: The column is used to support the upper floor. If a force F is applied perpendicular to the handle to tighten the screw, determine the

The column is used to support the upper floor. If a force F 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 μs, mean diameter d, and a lead h.

Units Used:

kN = 103 N

Given:

F = 80 N μ s = 0.4 d = 25 mm

h = 3 mm a = 0.5 m

The column is used to support the upper floor. If a force F is

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