Problem 5: We have the same information as in Problem 4, but now we are told that the mass of block A is 2 kg and the mass of block B is 4 kg. The mass of the thin rod is 1 kg. Given this information, find the forces (support reactions) acting on the pins at A and B. Problem 4: Two blocks, A and B, are pin connected by a 2 m rod and traveling along a horizontal plane. The speed and magnitude of acceleration of block B are known. The direction of the velocity and acceleration of block B indicates are indicated in Figure 4. v = 5 m/sec a = 2 m/sec2 y x A ) 30° Figure 4: Two blocks connected by rod. B 60°

Please break down the support reactions for each pin (A and B). Calculate in cartesian coordinates (x,y,z) and provide answers in cartesian coordinates as well. Use tangential/normal unit vectors, and work/energy theorem as needed.