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Applied Mechanics problems

  • 1. If l is the span of a light suspension bridge whose each cable carries total weight (w) and the central dip is y, the horizontal pull at each support, is

  • Options
  • A.
  • B.
  • C.
  • D. wl.
    • Discuss
  • 2. The moment of inertia of a triangular section (base b, height h) about centroidal axis parallel to the base, is

  • Options
  • A.
  • B.
  • C.
  • D.
  • E.
    • Discuss
  • 3. A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be

  • Options
  • A. zero
  • B. 0.5 m/sec
  • C. 1.0 m/sec
  • D. 2.0 m/sec.
    • Discuss
  • 4. M.I. of solid sphere, is

  • Options
  • A. 2/3 Mr2
  • B. 2/5 Mr2
  • C. Mr2
  • D. ?r4/2
  • E. 1/2 Mr2.
    • Discuss
  • 5. The direction of projection should bisect the angle between the inclined plane and the vertical for a range of a projectile on inclined plane

  • Options
  • A. to be zero
  • B. to be maximum
  • C. to be minimum
  • D. none of the these.
    • Discuss
  • 6. The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

  • Options
  • A. eastward
  • B. northward
  • C. westward
  • D. southward
  • E. upward.
    • Discuss
  • 7. The centre of gravity of a quadrant of a circle lies along its central radius at a distance of

  • Options
  • A. 0.2 R
  • B. 0.3 R
  • C. 0.4 R
  • D. 0.5 R
  • E. 0.6 R.
    • Discuss
  • 8. The unit of impulse, is

  • Options
  • A. kg.m/sec
  • B. kg.m/sec3
  • C. kg.m/sec2
  • D. kg.m2/sec.
    • Discuss
  • 9. A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is

  • Options
  • A. 16 m/sec
  • B. 18 m/sec
  • C. 20 m/sec
  • D. 22 m/sec.
    • Discuss
  • 10. The motion of a particle moving with S.H.M. from an extremity to the other, constitutes

  • Options
  • A. half an oscillation
  • B. one full oscillation
  • C. two oscillations
  • D. none of these.
    • Discuss

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