I need help with this problem. Please help me by answering and showing explanations.

1. See gure below. The bars ABC and CDE are both uniform, each with a mass of m (to be determined). The spring constant k = 400 N/m, and its unstretched length is 0.3 m. The angle 0 is 30. (a) Draw a free body diagram for the whole structure with the two bars and the spring (5 points); (b) Draw two separate free body diagrams for the two bars, ABC and CDE (5); (c) Find the tension in the spring (5); ((1) Find the reaction forces at supports A and D in terms of the mass m. (5) (e) Find the mass m