a 50 kg block is placed on an inclined plane with an angle of 30. then find the components of the weight (1)perpendicular (2)parallel to the inclined plane.

Answer 1

think of a weight w on a horizontal plane (θ=0). All of the force is downward. That means that

perpendicular is w*cosθ
parallel is w*sinθ

As the board is tilted, less and less is perpendicular, and more and more is parallel

Answer 2

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Answer 3

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