Part A to B A.) If the coefficient of kinetic friction between a 22 kgkg crate and the floor is 0.32, what horizontal force is required to move the crate at a steady speed across the floor? Express your answer to two significant figures and include the appropriate units. F= __________ ___________   B.) What horizontal force is required if μkμk is zero? Express your answer to two significant figures and include the appropriate units. F= ___________ __________

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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?”