Systems of Particles and Rotational Motion questions
1884 published questions with worked solutions.
- A uniform disc of 4 kg has radius of 0.4 m. Its moment of inertia about an axis passing through a point on its circumference and...
- Two bodies rotate with kinetic energies 'E_1' and 'E_2'. Moment of inertia about their axis of rotation is 'I_1' and 'I_2'. If...
- Two loops of radii 'R' and 'nR' are made from same wire of same linear mass density. The ratio of moment of inertia about an axis...
- A disc of mass 100 kg and radius 1 m is rotating at 300 rpm. The torque required to rotate the disc in opposite direction with...
- A solid sphere of mass 1 kg and radius 10 cm rolls without slipping on a horizontal surface, with velocity of 10 cm/s. The total...
- Four spheres each of mass 'M' and radius 'R' are placed with their centres on the corners of a square of side 'L'. The moment of...
- The power (P) is supplied to rotating body having moment of inertia 'I' and angular acceleration ' '. Its instantaneous angular...
- If the earth suddenly contracts to ( 13 )^2 of its present size without change in its mass, the ratio of kinetic energy of the...
- A uniform metallic rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise...
- A torque of 50 Nm acts on a body for 8 second which is initially at rest. The change in its angular momentum is [MHT-CET 2021,...
- The ratio of radii of gyration of a ring to a disc (both circular) of same radii and mass, about a tangential axis perpendicular...
- A solid cylinder of radius 'R' and mass 'M' rolls down an inclined plane of height 'h'. When it reaches the bottom of the plane,...
- If there is a change of angular momentum from 1J-s to 4J-s in 4 second, then the torque is [MHT-CET 2021, MHT-CET 2021]
- The moment of inertia of a uniform square plate about an axis perpendicular to its plane and passing through the centre is Ma^2 6...
- Three point masses, each of mass 'm' are placed at the corners of an equilateral triangle of side 'l'. The moment of inertia of...
- Two discs having moment of inertia I_1 and I_2 are made from same material have same mass. Their thickness and radii are t_1, t_2...
- Two circular rings 'A' and 'B' of radii 'nR' and 'R' are made from the same wire. The moment of inertia of 'A' about an axis...
- Four particles each of mass 'M' are placed at corners of square of side 'L'. The radius of gyration of the system about an axis...
- A same torque is applied to a disc and a ring of equal mass and radii then [MHT-CET 2021, MHT-CET 2021]
- Force F is acting on a particle having position vector r. Let be the torque of this force about the origin. The correct equation...
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