Physics questions
20027 published questions with worked solutions.
- The corresponding quantities in rotational motion related to m, F , p and v in linear motion are respectively
- The centre of mass of a rigid body cannot be
- Generally, most of the mass of the flywheel is placed on the rim
- M.I. of a body doesn't depend upon
- In rotational motion of a rigid body, all particles move with
- The rotational kinetic energy of a body rotating about some axis is directly proportional to
- If the kinetic energy of rotation of a body about an axis is 9 J and the moment of inertia is 2 kg ,m^2 , then the angular...
- A flywheel rotating about a fixed axis has a kinetic energy of 360 joule, when its angular speed is 30 radian/s. The moment of...
- The dimensions of radius of gyration are the same as that of
- The radius of gyration of a homogenous body is independent of
- Radius of gyration of a disc rotating about an axis perpendicular to its plane and passing through its centre is
- A flywheel of M.I. 0.32 kg ,m^2 is rotated steadily at 120 rad/s by a 50 W electric motor. The value of the frictional couple...
- A motor rotates at a constant speed of 25 rev/s. The power delivered by the motor, if it supplies a torque of 60 Nm, is
- If a constant couple of 500 N-m turns a wheel of moment of inertia 100 kg ,m^2 about an axis through its centre, the angular...
- Torque/moment of inertia equals to
- The product of moment of inertia (I) and angular acceleration ( ) is called
- A force F is acting on a particle of position vector r , the torque will be
- If the moment of inertia of a body is 2.5 kg ,m^2 , then the torque required to produce an angular acceleration of 18 rad/s^2 in...
- The dimensions of torque are the same as that of
- A torque of magnitude 2000 Nm acting on a body produces an angular acceleration of 20 rad/s^2 . The moment of inertia of the body...