The table below represents the data found by dragging solid brass weights across a desk with a spring scale. If the acceleration due to gravity is 9.81 m/s2, what mass would experience a frictional force of 2 N?   Normal Force (N) Frictional Force (N) 1.5 0.4 4.1 1.0  1. 0.54 kg  2. 0.86 kg  3. 4.0 kg  4. 8.3 kg

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Q: Hi i calculated for x and i got 45.72 I am wondering how did u get 91.44

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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?”