Write an expression for the relationship between the spring constant and the displacement of an object hanging from a spring. do the same for the displacement of the spring when the object is compressing the spring. what is the expected relationship between the applied force and the displacement of the spring?

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.