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Lesson: The Equilibrium of a Body on a Rough Inclined Plane

Worksheet: The Equilibrium of a Body on a Rough Inclined Plane • 21 Questions

Q1:

The figure shows a body of mass 46 N resting on a rough inclined plane. Given that the body is on the point of sliding down the plane and that the coefficient of static friction is , find the magnitude of the limiting friction.

  • A23 N
  • B N
  • C N
  • D46 N

Q2:

The figure shows a body resting on a rough inclined plane where the coefficient of static friction between the body and the plane . Given that the body is on the point of sliding down the plane, find the angle of inclination rounding your answer to the nearest minute if necessary.

  • A
  • B
  • C
  • D

Q3:

A body weighing 195 N rests on a rough plane inclined at an angle of to the horizontal. If the coefficient of friction between the body and the plane is , which of the following is true about the body?

  • AThe body is sliding down the plane.
  • BThe body is in a stable state of equilibrium.
  • CThe body is on the point of sliding down the plane.

Q4:

A body weighing 60 N rests on a rough plane inclined to the horizontal at an angle whose sine is . The body is pulled upward by a force of 63 N acting parallel to the line of the greatest slope. Given that the body is on the point of moving up the plane, find the coefficient of friction between the body and the plane.

  • A
  • B
  • C
  • D
  • E

Q5:

A body weighing 92 N rests on a rough plane inclined at an angle of to the horizontal. The coefficient of friction between the body and the place is . A force of 60 N is acting on the body up the line of greatest slope of the plane causing it to be in a state of equilibrium. Determine the magnitude of the friction stating whether it is acting up or down the plane, and state whether the body is on the point of moving or not.

  • A acting up the plane. The body is not on the point of moving.
  • B acting down the plane. The body is not on the point of moving.
  • C acting up the plane. The body is not on the point of moving.
  • D acting down the plane. The body is on the point of moving.
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