A mass of 72 kg is resting on a board inclined at 20⁰ horizontal what is the component of mass normal and parallel to the board
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Explanation:
The weight of man is 72 Kg and he is standing on a board inclined at 200 with the horizontal.
From the figure, it is clear that,
The component of man’s weight perpendicular to the board is
F
⊥
=mgcosθ
F
⊥
=72cos(20)
The component of man’s weight parallel to the board is
F
∥
=mgsinθ
F
∥
=72sin(20)
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