A uniform thick and homogeneous wooden beam is supported at two points, A and B. The mass of the beam is 70 kg. From left, the distance to A is 0.6 m. Distance between A and B is 1.2 m (in the middle) Distance from B to right edge is 1.5 m. Calculate the stress force on the support A and B (B is 0.6+1.2 from the left) thus, the total length of the beam is 0.6+1.2+1.5 and supports are at 0.6 and (0.6+1.2)