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  • Question

  • The velocity of a body fallen from height h, on reaching the ground is given by


  • Options
  • A. v = 2gh
  • B. v = 2gh2
  • C. v = 2gh
  • D. v = 1/2gh
  • E. h2/2g

  • Correct Answer
  • v = 2gh 

    • Applied Mechanics problems

    Search Results

    • 1. The c.g. of the shaded area of the below figure from the x-axis is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 2. The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is

    • Options
    • A. 1/4
    • B. 1/2
    • C. 3/4
    • D. 2.
      • Discuss
    • 3. Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and

    • Options
    • A. concurrent
    • B. parallel
    • C. concurrent parallel
    • D. none of these.
      • Discuss
    • 4. A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,

    • Options
    • A. 5 N
    • B. 10 N
    • C. 15 N
    • D. 25 N
    • E. None of these.
      • Discuss
    • 5. For a simple pendulum, the period of one oscillation is

    • Options
    • A. 2?l/2g
    • B. 2?2g/l
    • C. 2?l/g
    • D. 2?g/2l.
      • Discuss
    • 6. If the linear velocity of a point on the rim of a wheel of 10 m diameter, is 50 m/sec, its angular velocity will be

    • Options
    • A. 20 rad/sec
    • B. 15 rad/sec
    • C. 10 rad/sec
    • D. 5 rad/sec.
      • Discuss
    • 7. If v and ? are linear and angular velocities, the centripetal acceleration of a moving body along the circular path of radius r, will be

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. r?.
      • Discuss
    • 8. If two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to

    • Options
    • A. 7 kg
    • B. 1 kg
    • C. 5 kg
    • D. 1/7 kg
    • E. none of these.
      • Discuss
    • 9. The reaction RB of the roller support B of the beam shown in below figure is

    • Options
    • A. 10.8 t
    • B. 10.6 t
    • C. 10.4 t
    • D. 10.2 t.
      • Discuss
    • 10. The maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known

    • Options
    • A. sliding friction
    • B. rolling friction
    • C. limiting friction
    • D. none of these.
      • Discuss

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