A young lady is pulling a cart with tension "T" using an inclined string as shown in the figure. The normal force "n" acting on the cart is: A Greater than the force of gravity "Fg": Less than the force of gravity "Fg". O Equal to the force of gravity "Fg". O More Information is needed to decide. 8

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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?”