The rigid bar is supported by the two short white spruce wooden posts and a spring 50 kN/m B 1 m 1 m 1 m Part A If each of the posts has an unloaded length of 1 m and a cross-sectional area of 750 mm and the spring has a stiffness of k= 2 MN/m and an unstretched length of 102 m determine the force in each post after the load is applied to the bar Express your answer to three significant figures and include appropriate units.