Physics

Physics

Problem

Which of the following pairs of forces constitutes an action–reaction pair according to Newton's third law? a) The gravitational force of Earth on a book and the normal force of the table on the book b) The tension force of a rope pulling upward on a bucket and the weight of the bucket pulling downward c) The force of a finger pushing a light switch and the force of the light switch pushing back on the finger d) The kinetic friction force of a surface acting on a sliding crate and the normal force of the surface acting on the crate

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