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A Block of Mass M is Placed on a Smooth Inclined Plane of Inclination θ with the Horizontal. the Force Exerted by the Plane on the Block Has a Magnitude. - Physics

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MCQ

A block of mass m is placed on a smooth inclined plane of inclination θ with the horizontal. The force exerted by the plane on the block has a magnitude.

Options

  •  mg

  • mg/cosθ

  • mg cosθ

  •  mg tanθ

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Solution

mg cosθ

From the free-body diagram,
N = mg cosθ
Normal force exerted by the plane on the block is mg cosθ.

Concept: Newton's Third Law of Motion
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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 1
Chapter 5 Newton's Laws of Motion
MCQ | Q 5 | Page 77
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