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    Mathematics A-Level

    Normal reaction on horizontal and inclined surfaces

    What Normal reaction on horizontal and inclined surfaces means in Mathematics A-Level, as defined for AQA.

    Definition of Normal reaction on horizontal and inclined surfaces

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    For a body on a rough horizontal surface R is often equal to weight, but on an incline R = mg cos θ.
    AQA · R: Forces and Newton’s laws (study guide)

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