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24 October, 21:24

A person whose mass is m = 70.0 kg m=70.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle α = 22.3 ∘ α=22.3∘ with the horizontal. What is the reading on the scale?

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  1. 24 October, 21:44
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    Answer:The reading on the scale is 64.76kg

    Explanation:

    According to Newton's 3rd law, when a person exerts a force on a plane, the plane simultaneously exerts a force equal in magnitude and opposite.

    Given: mass=70kg, alpha = 22.3°

    Mg=mg*cos alpha = 70kg * cos22.3°=

    70 * 0.9252 = 64.76kg

    The reading on the scale is 64.76kg
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