Physics questions
20027 published questions with worked solutions.
- The distance between the axis of rotation and a point at which the whole mass of the body can be supposed to be concentrated, so...
- Radius of gyration of a disc rotating about an axis perpendicular to its plane and passing through its centre is
- When a steady torque or couple acts on a body, the body
- The relation between the torque and the angular momentum L of a body of moment of inertia I rotating with angular velocity is
- When the torque acting on a system is zero, which of the following is conserved?
- A disk and a ring of same K.E are brought to rest by application of a torque. In which case work done is more in bringing them to...
- A ring and a disc of different masses are rotating with the same kinetic energy. If we apply a retarding torque on the ring, it...
- If I_x and I_y are moment of inertia of the lamina in the plane and I_z is moment of inertia of the lamina perpendicular to the...
- Two flywheels of the same mass have radius R and r where R > r, and they have same rotational kinetic energy then the angular...
- A person can balance easily on a moving bicycle but cannot balance on stationary bicycle. This is possible because of law of...
- When the torque acting on a system is zero, then the conserved quantity is
- If a gymnast sitting on a rotating disc with his arms out stretched suddenly lowers his arms, then
- A body moves with constant velocity parallel to X-axis. Its angular momentum with respect to origin
- When a particle is rotating in a plane about a fixed point, its angular momentum is directed along the
- A person is standing on a rotating wheel. If he sits on the wheel, then the angular momentum of the system will
- A man stands at the centre of a turn table and the turn table is rotating with certain angular velocity. If he walks towards rim...
- A man turns on a rotating table with an angular velocity . He is holding two equal masses at arms Without moving his arms, he...
- Two rigid bodies have same moment of inertia about there axes of symmetry. Then which will have more kinetic energy?
- Angular momentum of the system of particles changes when
- The term moment of momentum is called