Systems of Particles and Rotational Motion questions
1884 published questions with worked solutions.
- When a torque acting upon a system is zero, which of the following will be constant?
- The principle of conservation of angular momentum states that angular momentum
- Torque applied on a particle is zero, then its angular momentum will be
- A cockroach is moving with velocity v in an anticlockwise direction on the rim of a disc of radius R and mass m. The moment of...
- Angular momentum of a system of particles changes when
- A 2 kg mass is rotating on a circular path of radius 0.8 m with angular velocity of 44 rad/sec. If the radius of the path becomes...
- A person standing on a rotating platform has his hands lowered. He suddenly outstretches his arms. The angular momentum
- A boy stands over the centre of a horizontal platform which is rotating freely with a speed of 2 revolutions/sec about a vertical...
- What remains constant in the field of a central force?
- The position of a particle is given by r=( +2 - k) and momentum P=(3 +4 -2 k). The angular momentum is perpendicular to
- A ballet dancer, dancing on a smooth floor, is spinning about a vertical axis with her arms folded, with an angular velocity of...
- A circular turn table has a block of ice placed at its centre. The system rotates with an angular speed about an axis passing...
- The angular momentum of a system of particles is conserved
- The rotational kinetic energy of a body is E and its moment of inertia is I. The angular momentum is
- A horizontal platform is rotating with uniform angular velocity around the vertical axis passing through its centre. At some...
- The radius of a rotating disc is suddenly reduced to half without any change in its mass. Then its angular velocity will be
- If a force acts on a body at a point away from the centre of mass, then
- A disc is rotating with an angular speed of . If a child sits on it, which of the following is true?
- A particle with position vector r has a linear momentum p. Which of the following statements is true in respect of its angular...
- A uniform heavy disc is rotating at constant angular velocity about a vertical axis through its centre and perpendicular to the...
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