Two blocks tired together by a horizontal string are being pulled across the table by a horizontal force of 46N, as shown in the diagram below (SP5 Diagram). The 3-kg block has a 6-N frictional force exerted on it by the table, and the 7-kg block has an 8-N frictional force acting on it.
(a) What is the net force acting on the entire two-block system?
(b) What is the acceleration of this system?
(c) What force is exerted on the 3-kg block by the connecting string? (Consider only the forces acting on this block. Its acceleration is the same as that of the entire system.) (d) Find the net force acting on the 7-kg block and calculate its acceleration. How does this value compare to that found in part b?
(d), use the forces acting on the 7-kg block to find its acceleration. Do NOT use the acceleration from part b to find the net force.]