7. Assume the three blocks portrayed in the figure below move on a frictionless surface and a 42-N force acts as shown on the 3.0-kg block. Determine (a) the acceleration given this system, (b) the tension in the cord connecting the 3.0-kg and the 1.0-kg blocks, and (c) the force exerted by the 1.0-kg block on the 2.0-kg block. Answers: a) 7.0 m/s² horizontal and to the right b) 21 N c) 14 N horizontal and to the right

7. Assume the three blocks portrayed in the figure below move on a frictionless surface and a 42-N force acts as shown on the 3.0-kg block. Determine (a) the acceleration given this system, (b) the tension in the cord connecting the 3.0-kg and the 1.0-kg blocks, and (c) the force exerted by the 1.0-kg block on the 2.0-kg block. Answers: a) 7.0 m/s² horizontal and to the right b) 21 N c) 14 N horizontal and to the right