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Systems of Particles and Rotational Motion Test - 54
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Systems of Particles and Rotational Motion Test - 54
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  • Question 1/10
    4 / -1
    A small object of mass m is attached to a light string which passes through a hollow tube. The tube is hold by one hand and the string by the other. The object is set into rotation in a circle of radius R and velocity v. The string is then pulled down, shortening the radius of path of r. What is conserved?
  • Question 2/10
    4 / -1
    A swimmer while jumping into water from a height easily forms a loop in the air, if
  • Question 3/10
    4 / -1
    A ring of mass 10 kg and diameter 0.4 m is rotated about its axis. If it makes 2100 revolutions per minute, then its angular momentum will be
    Solutions

  • Question 4/10
    4 / -1
    A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same which one of the following will not be affected
  • Question 5/10
    4 / -1
    Angular momentum of the particle rotating with a central force is constant due to
  • Question 6/10
    4 / -1
    Calculate the angular momentum of a body whose rotational energy is 10 joule. If the angular momentum vector coincides with the axis of rotation and its moment of inertia about this axis is 8 × 10–7 kg/m2
    Solutions

  • Question 7/10
    4 / -1
    If the earth is treated as a sphere of radius R and mass M. Its angular momentum about the axis of rotation with period T is
    Solutions

  • Question 8/10
    4 / -1
    If the polar ice caps melt suddenly
    Solutions

  • Question 9/10
    4 / -1
    A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach other end. During the journey of the insect, then angular speed of the disc
    Solutions

  • Question 10/10
    4 / -1
    A body moves with constant velocity v is a straight line parallel to x–axis. The angular momentum with respect to origin is
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