Three blocks, each having a mass of 1.21 kg, are connected by rigid rods of negligible mass and are supported by a frictionless surface. Forces F1 and F2, of magnitude 4.95 N and 11.6 N respectively, are applied to the ends of the blocks as shown in the figure below. Find the forces acting on block B (the +x direction is to the right).
A. The magnitude of the force applied by the rod on the left.
B. The magnitude of the force applied by the rod on the right.