Define net force, external force, and system.Understand Newton’s second law of motion. Apply Newton’s second law to determine the weight of an object

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A: Given, Angle θ=200F=15,000 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?”