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al me Question 1 The centre of mass of a system of particles does not depend upon a position of particles b relative distance between particles c masses of particles d force acting on particle LAIPMT 1997 AIEEE 2004 2 A couple produces pure rotation b pure translation c rotation and translation d no motion AIPMT 1997 3 A particle is moving with a constant velocity along a line parallel to positive X axis The magnitude of its angular momentum with respect to the origin is a zero b increasing with x c decreasing with x d remaining constant L distan 1220 b 25 rad s d 25 m s NEET 2017 IIT 2002 14 A rope is wound around a hollow cylinder of mass 3 kg and radius 404 CXID cm What is the angular acceleration of the cylinder if the rope is pulled with a force 30 N m a 0 25 rad s c 5 m s 5 A closed cylindrical container is partially filled with water As the container rotates in a horizontal plane about a perpendicular bisector its moment of inertia 38CTUB a increases c remains constant d depends on direction of rotation IIT 1998 6 A rigid body rotates with an angular momentum L If its kinetic energy is halved the angular momentum becomes a L c 2L b decreases b 1 2 4 L 2 AFMC 1998 AIPMT 2015 7 A particle undergoes uniform circular motion The angular momentum of the particle remain conserved about a the centre point of the circle b the point on the circumference of the circle is not changing c any point inside the circle d any point outside the circle IIT 2003 8 When a mass is rotating in a plane about a fixed point its angular momentum is directed along a a line perpendicular to the plane of rotation COL b the line making an angle of 45 to the plane of rotation c the radius d tangent to the path AIPMT 2012 9 Two discs of same moment of inertia rotating about their regular axis passing through

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