Physics questions
20027 published questions with worked solutions.
- A thin uniform rod of length l and mass m is swinging freely about a horizontal axis passing through its end. Its maximum angular...
- A solid cylinder of mass 20 kg rotates about its axis with angular speed 100 rad ,s^ -1 . The radius of the cylinder is 0.25 m....
- A ring of mass M and radius R is rotating about its axis with angular velocity . Two identical bodies each of mass m are now...
- The moments of inertia of two rotating bodies A and B are I_1 and I_2, where I_2 > I_1. If K_A and K_B are their rotational...
- A thin uniform rod has mass M and length L. The moment of inertia about an axis perpendicular to it and passing through the point...
- The ratio of radius of gyration of a ring to a disc (both circular) of same radii and mass, about a tangential axis perpendicular...
- Three point masses, each of mass m are placed at the corners of an equilateral triangle of side l. The moment of inertia of the...
- Two circular loops A and B of radii R and NR respectively are made from a uniform wire. Moment of inertia of B about its axis is...
- A rope is wound around a solid cylinder of mass 1 kg and radius 0.4 m. What is the angular acceleration of cylinder, if the rope...
- 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 one of...
- When a 12000 J of work is done on a flywheel, its frequency of rotation increases from 10 Hz to 20 Hz. The moment of inertia of...
- A rigid body is rotating with angular velocity about an axis of rotation. Let v be the linear velocity of particle which is at...
- A mass is whirled in a circular path with constant angular velocity and its linear velocity is v. If the string is now halved...
- 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 angular...
- A square frame ABCD is formed by four identical rods each of mass m and length l. This frame is in XY-plane such that side AB...
- The moment of inertia of a ring about an axis passing through the centre and perpendicular to its plane is I. It is rotating with...
- A wheel of moment of inertia 2 kg ,m^2 is rotating about an axis passing through centre and perpendicular to its plane at a speed...
- A flywheel at rest is to reach an angular velocity of 24 rad/s in 8 s with constant angular acceleration. The total angle turned...
- For a particle moving in vertical circle, the total energy at different positions along the path [MHTCET 2017]
- A ceiling fan rotates about its own axis with some angular velocity. When the fan is switched OFF, the angular velocity becomes (...