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The minimum force needed to pull a body up an inclined surface with friction is W sin (inclination angle + friction angle). In which direction should this force be applied?

Strength of Materials MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Strength of Materialscivil-engineering-mcqs › strength-of-materials
Published
15 Jan 2019
Last updated
28 May 2026

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Explanation

The least force required to move a body up an inclined plane with friction acts at an angle equal to the friction angle measured from the plane's surface. Applying the force in this direction ensures the force overcomes both gravitational and frictional resistances efficiently.

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Practice related questions from the same subject.

  1. 1.In a third-class lever, how are the positions of the load (W), effort (P), and fulcrum (F) arranged?
  2. 2.What is the standard SI unit used to measure work or energy?
  3. 3.Identify the option that is not a unit used to measure pressure.
  4. 4.What is the term for forces that intersect at a single point but whose lines of action are not confined to the same plane?
  5. 5.Identify the quantity below that is not classified as a scalar.
  6. 6.Two forces act at different angles and produce different resultant magnitudes: when perpendicular, their resultant is √10 kg, and when the angle between them is 60°, the resultant measures √13 kg. What are the magnitudes of these two forces?
  7. 7.What is formed when two equal, parallel forces act in opposite directions but are not along the same line?
  8. 8.What does the law of the triangle of forces state?
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