Consider the three boxes m₂=7.6 kg, m=10.2 kg and m-4.54 kg which are connected by massless cords passing over frictionless pulleys. The box m rests on a frictionless tabletop while box m and box mare suspended at the ends of the cords connected to box m. What is the magnitude of acceleration and direction of motion of box m when the system is released from rest? mb ma mc O 1.34 meters per second squared, upward O 1.34 meters per second squared, downward O 2.26 meters per second squared, upward 2.26 meters per second squared, downward

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”