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  • Question

  • The minimum force required to slide a body of weight W on a rough horizontal plane is


  • Options
  • A. W sin ?
  • B. W cos ?
  • C. W tan ?
  • D. none of these

  • Correct Answer
  • W tan ? 

    • Engineering Mechanics problems

    Search Results

    • 1. The motion of a particle round a fixed axis is

    • Options
    • A. translatory
    • B. rotary
    • C. circular
    • D. translatory as well as rotatry
      • Discuss
    • 2. The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

    • Options
    • A. less than
    • B. greater than
      • Discuss
    • 3. In a framed structure, as shown in the below figure, the force in the member BC is

    • Options
    • A. W/3 (compression)
    • B. W/3 (tension)
    • C. 2W/3 (compression)
    • D. 2W/3 (tension)
      • Discuss
    • 4. The process of finding out the resultant force is called __________ of forces.

    • Options
    • A. composition
    • B. resolution
      • Discuss
    • 5. The angular velocity (in rad / s) of a body rotating at N revolutions per minute is

    • Options
    • A. ?N/60
    • B. ?N/180
    • C. 2?N/60
    • D. 2?N/180
      • Discuss
    • 6. The acceleration of a particle moving with simple harmonic motion, at any instant is given by

    • Options
    • A. ?.y
    • B. ?2.y
    • C. ?2 /y
    • D. ?3.y
      • Discuss
    • 7. The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
      • Discuss
    • 8. If three forces acting at a point are represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are in equilibrium.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 9. A machine having an efficiency less than 50%, is known as

    • Options
    • A. reversible machine
    • B. non-reversible machine
    • C. neither reversible nor non-reversible machine
    • D. ideal machine
      • Discuss
    • 10. The loss of kinetic energy during elastic impact is zero.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss

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