I Review Learning Goal: To understand kinetic and static friction. Part D A block of mass m lies on a horizontal table. The coefficient of static friction between the block and Suppose you push horizontally with precisely enough force to make the block start to move, and you continue to apply the same amount of force even after it starts moving. Find the acceleration a of the block after it begins to move. the table is ls. The coefficient of kinetic friction is Uk , with Uk Express your answer in terms of some or all of the variables Us, Uk, and m, as well as the free-fall acceleration g. View Available Hint(s) Bνα ΑΣφ Submit Previous Answers Request Answer

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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?”