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  • Question

  • Energy may be defined as


  • Options
  • A. power of doing work
  • B. capacity of doing work
  • C. rate of doing work
  • D. all the above.

  • Correct Answer
  • capacity of doing work 

    • Applied Mechanics problems

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    • 1. A weight of 100 kg is supported by a string whose ends are attached to pegs A and B at the same level shown in below figure. The tension in the string is

    • Options
    • A. 50 kg
    • B. 75 kg
    • C. 100 kg
    • D. 120 kg.
      • Discuss
    • 2. Total no of instantaneous centres of a machine having n links, is

    • Options
    • A. n/2
    • B. n
    • C. (n - 1)
    • D.
      • Discuss
    • 3. The units of inertia of mass, are

    • Options
    • A. kg/m
    • B. kg/m2
    • C. m4
    • D. m3
    • E. kg-m2.
      • Discuss
    • 4. A retarding force on a body does not

    • Options
    • A. change the motion of the body
    • B. retard the motion of the body
    • C. introduce the motion of the body
    • D. none of these.
      • Discuss
    • 5. From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The c.g. of the remainder shifts from the original position through

    • Options
    • A. 0.25 cm
    • B. 0.50 cm
    • C. 0.75 cm
    • D. 1.00 cm.
      • Discuss
    • 6. A block of weight 50 kg is placed on a horizontal plane. When a horizontal force of 18 kg is applied, the block is just on the point of motion. The angle of friction is

    • Options
    • A. 17° 48'
    • B. 18° 48'
    • C. 19° 48'
    • D. 20° 48'
    • E. 21° 48'.
      • Discuss
    • 7. From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the centre of circular plate is at a distance of

    • Options
    • A. 2.0 cm
    • B. 1.5 cm
    • C. 1.0
    • D. 0.5 cm.
      • Discuss
    • 8. To double the period of oscillation of a simple pendulum

    • Options
    • A. the mass of its bob should be doubled
    • B. the mass of its bob should be quadrupled
    • C. its lenght should be quadrupled
    • D. its length should be doubled.
      • Discuss
    • 9. A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses

    • Options
    • A. maximum kinetic energy and minimum potential energy
    • B. maximum kinetic energy and maximum potential energy
    • C. minimum kinetic energy and maximum potential energy
    • D. minimum kinetic, energy and minimum potential energy
    • E. none of these.
      • Discuss
    • 10. If ? is the angular acceleration of a compound pendulum whose angular displace ment is ?, the frequency of the motion is

    • Options
    • A. 2??/?
    • B.
    • C. 4??/?
    • D. 2?? - ?.
      • Discuss

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