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  • Question

  • Pick up the correct statement from the following. The kinetic energy of a body


  • Options
  • A. before impact is equal to that after impact
  • B. before impact is less than that after impact
  • C. before impact is more than that after impact
  • D. remains constant
  • E. none of these.

  • Correct Answer
  • before impact is more than that after impact 

    • Applied Mechanics problems

    Search Results

    • 1. In the structure shown in below figure, the member which carries zero force, is

    • Options
    • A. AB
    • B. BC
    • C. BE
    • D. BD
    • E. All the above.
      • Discuss
    • 2. If two equal forces of magnitude P act at an angle ?, their resultant, will be

    • Options
    • A. P cos ?/2
    • B. 2P sin ?/2
    • C. P tan ?/2
    • D. 2P cos ?/2
    • E. P sin ?/2.
      • Discuss
    • 3. The motion of a bicycle wheel is

    • Options
    • A. translatory
    • B. rotary
    • C. rotary and translatory
    • D. curvilinear
      • Discuss
    • 4. The point about which combined motion of rotation and translation of a rigid body takes place, is known as

    • Options
    • A. Virtual centre
    • B. Instantaneous centre
    • C. Instantaneous axis
    • D. Point of rotation
    • E. All the above.
      • Discuss
    • 5. The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of

    • Options
    • A. 8.04 km/sec at a height of 285 km
    • B. 11.11 km/sec at a height of 37, 400 km
    • C. 11.26 km/sec, the satellite escapes the pull of the earth
    • D. all the above.
      • Discuss
    • 6. Power developed by a torque, is

    • Options
    • A. 2?NT kg m/min
    • B.
    • C.
    • D. all the above.
      • Discuss
    • 7. A rigid body suspended Vertically at a point and oscillating with a small amplitude under the action of the force of gravity, is called

    • Options
    • A. simple pendulum
    • B. compour pendulum
    • C. Second's pendulum
    • D. none of these.
      • Discuss
    • 8. The reaction at the central support B of the beam ABC hinged at D shown in below figure is

    • Options
    • A. 2 t
    • B. 5.8 t
    • C. 0.2 t
    • D. 3.5 t.
      • Discuss
    • 9. On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts

    • Options
    • A. downwards at its upper end
    • B. upwards at its upper end
    • C. perpendicular to the wall at its upper end
    • D. zero at its upper end
    • E. none of these.
      • Discuss
    • 10. The velocity of the fluid particle at the centre of the pipe section, is

    • Options
    • A. minimum
    • B. maximum
    • C. equal throughout
    • D. none of these.
      • Discuss

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