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  • Question

  • During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.


  • Options
  • A. equal to
  • B. equal and opposite to
  • C. less than
  • D. greater than

  • Correct Answer
  • equal and opposite to 

    • Engineering Mechanics problems

    Search Results

    • 1. Work done is said to be zero, when

    • Options
    • A. some force acts on a body, but displacement is zero
    • B. no force acts on a body but some displacement takes place
    • C. either (a) or (b)
    • D. none of the above
      • Discuss
    • 2. The unit of angular acceleration is

    • Options
    • A. N-m
    • B. m/s
    • C. m/s2
    • D. rad/s2
      • Discuss
    • 3. The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 5. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

    • Options
    • A. bh3/4
    • B. bh3/8
    • C. bh3/12
    • D. bh3/36
      • Discuss
    • 6. The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, ? = Angle of projection, and ? = Inclination of the plane with the horizontal.)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be

    • Options
    • A. same
    • B. half
    • C. double
      • Discuss
    • 8. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.

    • Options
    • A. less than
    • B. more than
    • C. equal to
      • Discuss
    • 9. The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.

    • Options
    • A. depends
    • B. does not depend
      • Discuss

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