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  • Question
  • If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration in the string will be
    If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration i


  • Options
  • A. same
  • B. half
  • C. double

  • Correct Answer
  • same 


  • Engineering Mechanics problems


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    • 1. Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 2. Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then

    • Options
    • A. their algebraic sum is zero
    • B. their lines of action are at equal distances
    • C. the algebraic sum of their moments about any point in their plane is zero
    • D. the algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point.
    • Discuss
    • 3. One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by(where ? = Deflection of the spring.)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 4. Onejoule is equal to

    • Options
    • A. 0.1 N-m
    • B. 1 N-m
    • C. 10 N-m
    • D. 100 N-m
    • Discuss
    • 5. The unit of work in S.I. units is

    • Options
    • A. newton
    • B. erg
    • C. kg-m
    • D. joule
    • Discuss
    • 6. In actual machines, mechanical advantage is __________ velocity ratio.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
    • Discuss
    • 7. The loss of kinetic energy during inelastic impact, is given by(where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)

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    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 8. The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 9. The periodic time (T) is given by(where ? = Angular velocity of particle in rad / s.)

    • Options
    • A. ?/2?
    • B. 2?/?
    • C. 2? x ?
    • D. ?/?
    • Discuss
    • 10. The centre of oscillation and centre of suspension for a compound pendulum are interchangeable.

    • Options
    • A. True
    • B. False
    • Discuss


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