Five forces are applied ta the solid prism shown in Figure 1. Note that the 30 lb forces are in the plane of the prism's surface and are not vertical. Also note that the end of the prism is not an equilateral triangle. a} Compute the magnitude of the couple moment of the force couple formed by the 30 Ib forces. b) Replace all the forces with an equivalent resultant force and couple moment acting at point A, R andG, . Give your answers as Cartesian vectors. Figure 1: 50 |b