Determine the range of values for Mass B so that 250 kg Mass A in Figure Q2 is in equilibrium. The coefficient of static friction μs between all contacts surface is 0.3. 250 kg A 20° 20.00 B

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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?”