In a Tesco supermarket parking lot, an employee is pushing ten empty shopping carts, lined up in a straight line. The acceleration of the carts is 0.050ms ^ -2 . The ground is level, and cach cart has a mass of 2.6 kg. (i) What is the net force acting on any one of the carts? (ii) Assuming friction is negligible, what is the force exerted by the firth cart on the sixth cart? A. 0.13 N B. 0.65 N C. 1.25 N D. 1.30 N E. 6.50 N

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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?”