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AP Physics 1
2.3 Newton’s Third Law
BeginnerMCQConceptual17.6k
A rectangular block sits centered on a flat horizontal table surface. A small dot represents the center of mass of the block. An arrow labeled mg points downward from the center of mass. An arrow labeled F_N points upward from the surface of the table into the block.
A block of mass m resting on a horizontal table.
A block of mass \(m\) is at rest on a horizontal table. The Earth exerts a downward gravitational force of magnitude \(mg\) on the block, and the table exerts an upward normal force of magnitude \(F_N\) on the block. Which of the following correctly identifies an action-reaction pair of forces for this system according to Newton's third law?

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