Physics questions
20027 published questions with worked solutions.
- A solid sphere of mass 2 kg is rolling on a frictionless horizontal surface with velocity 6 m/s. It collides on the free end of...
- A ceiling fan rotates about its own axis with some angular velocity. When the fan is switched off, the angular velocity becomes (...
- A disc of moment of inertia 'I_1' is rotating in horizontal plane about an axis passing through a centre and perpendicular to its...
- A mass attached to one end of a string crosses top-most point on a vertical circle with critical speed. Its centripetal...
- A disc has mass 'M' and radius 'R'. How much tangential force should be applied to the rim of the disc so as to rotate with...
- The real force 'F' acting on a particle of mass 'm' performing circular motion acts along the radius of circle 'r' and is...
- A stone of mass 1 kg is tied to a string 2 m long and is rotated at constant speed of 40 ms^ -1 in a vertical circle. The ratio...
- A stone of mass 'm' tied to a string of length 'l' is whirled in a circle of radius 'r' under the effect of gravity. If its...
- Three point masses each of mass 'm' are kept at the corners of an equilateral triangle of side 'L'. The system rotates about the...
- When a 12000 joule of work is done on a flywheel, its frequency of rotation increases from 10 Hz to 20 Hz. The moment of inertia...
- Three identical rods each of mass 'M' and length 'L' are joined to form a symbol 'H'. The moment of inertia of the system about...
- A solid sphere rolls down from top of inclined plane, 7 m high, without slipping. Its linear speed of the foot of plane is (g =...
- A molecule consists of two atoms each of mass 'm' and separated by a distance 'd'. At room temperature the average rotational...
- A disc and a solid sphere roll down the same inclined plane. The ratio of their speeds is [MHT-CET 2023, MHT-CET 2023]
- A wheel of moment of inertia 2 kg m^2 is rotating at a speed of 25 rad/s. Due to friction on the axis, it comes to rest in 10...
- A ring, a disc and a solid sphere have same mass and radius. All of them are rolled down on an inclined plane from same height,...
- A circular coil and a disc having same mass roll without slipping on the horizontal with same linear velocity. If the total K. E....
- A child is swinging on a swing in sitting position. If he stands up, then periodic time of the swing will [MHT-CET 2023, MHT-CET...
- Earth revolves round the sun in a circular orbit of radius 'R'. The angular momentum of the revolving earth is directly...
- A coin kept at a distance 'r_1' cm from the axis of rotation of a turn table, just begins to slip when the turntable rotates at...