Systems of Particles and Rotational Motion questions
1884 published questions with worked solutions.
- If L is angular momentum of rotating body and E is its rotational K.E. then:
- Two discs with same mass but different radii are moving with same K.E. one of then rolls and the other slides without friction...
- In the absence of external torque on a system, which of the following?
- A pan containing a layer of uniform thickness of ice is placed on a circular turntable with its centre coinciding with the centre...
- The imaginary line passing through the common centres of all particles moving in different circles of a body is:
- When same torque acts on two rotating rigid bodies to stop them, which have same angular momentum:
- The K. E. of a body rotating with an angular speed depends on
- A thin circular disc rolls on a horizontal surface without slipping. Its rotational KE is
- A spherical ball rolls on a table without slipping. Then the fraction of its total energy associated with rotation is
- When W joules of work is done on a flywheel, its frequency of rotation increases form V_1 Hz to V_2 Hz The moment of inertia of...
- 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...
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