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  • Question

  • The time of flight (t) of a projectile on a horizontal plane is given by


  • Options
  • A. The time of flight (t) of a projectile on a horizontal plane is given by
  • B. The time of flight (t) of a projectile on a horizontal plane is given by
  • C. The time of flight (t) of a projectile on a horizontal plane is given by
  • D. The time of flight (t) of a projectile on a horizontal plane is given by

  • Correct Answer
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    • Engineering Mechanics problems

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    • 1. The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

    • Options
    • A. P + Q
    • B. P - Q
    • C. P / Q
    • D. Q / P
      • Discuss
    • 2. If the gravitational acceleration at any place is doubled, then the weight of a body will be

    • Options
    • A. g/2
    • B. g
    • C. 2g
    • D. 2g
      • Discuss
    • 3. The centre of gravity of a right angled triangle lies at its geometrical centre.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 4. The unit of power in S.I. units is

    • Options
    • A. horsepower
    • B. joule
    • C. watt
    • D. kg-m
      • Discuss
    • 5. The loss of kinetic energy due to direct impact of two bodies __________ upon the value of coefficient of restitution.

    • Options
    • A. depends
    • B. does not depend
      • Discuss
    • 6. Two equal and opposite parallel forces whose lines of action are different form a couple.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 7. When a particle moves along a circular path, its acceleration has two components, one is normal component and the other is tangential component of acceleration.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The moment of inertia of a sphere of mass m and radius r, about an axis tangential to it, is

    • Options
    • A. 2mr2/3
    • B. 2mr2/5
    • C. 7mr2/3
    • D. 7mr2/5
      • Discuss
    • 9. The velocity ratio for the third system of pulleys is

    • Options
    • A. n
    • B. n2
    • C. 2n
    • D. 2n - 1
      • Discuss
    • 10. The velocity ratio for the first system of pulleys is(where n is the number of pulleys.)

    • Options
    • A. n
    • B. n2
    • C. 2n
    • D. 2n - 1
      • Discuss

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