Physics questions
20027 published questions with worked solutions.
- Length of a simple pendulum is 2 m and mass of its bob is 2 kg. If the tension in the string exceeds 100 N, it will break. If g =...
- A body moving along a circular path of radius R with velocity v has centripetal acceleration a. If its velocity is made equal to...
- A stone is tied to a string of length l and is whirled in a vertical circle with the other end of the string as the centre. At a...
- A body of mass m hangs at one end of a string of length l, the other end of which is fixed. It is given a horizontal velocity so...
- A ball suspended by a thread swings in a vertical plane, so that its acceleration in the extreme position and lowest position are...
- You may have seen in a circus, a motorcyclist driving in vertical loop inside a 'death well' (a hollow spherical chamber with...
- The maximum and minimum tensions in the string whirling in a circle of radius 2.5 m are in the ratio 5 : 3, then its velocity is
- Two circular rings A and B of radii nR and R are made from the same wire. The MI of A about an axis passing through the centre...
- Four particles each of mass m are lying symmetrically on the rim of a disc of mass M and radius R. Moment of inertia of this...
- Moment of inertia of a thin uniform rod rotating about the perpendicular axis passing through its centre is I. If the same rod is...
- A thin circular ring of mass m and radius R is rotating about its axis with a constant angular velocity . Two objects each of...
- Bodies of regular geometrical shape were allowed to roll on a horizontal surface. It was found that for one rolling body...
- A particle of mass 2 kg is on a smooth horizontal table and moves in a circular path of radius 0.6 m. The height of the table...
- The mass of the earth is increasing at the rate of 1 part in 5 10^ 19 per day by the attraction of meteors falling normally on...
- A uniform rod AB of mass m and length l at rest on a smooth horizontal surface. An impulse P is applied to the end B. The time...
- A hoop of radius r and mass m rotating with an angular velocity _0 is placed on a rough horizontal surface. The initial velocity...
- A child is standing with folded hands at the centre of a platform rotating about its central axis. The kinetic energy of the...
- Two wheels of radii 10 cm and 30 cm are connected to each other by a belt. What is the ratio of the moment of inertia of the...
- A solid sphere is given a kinetic energy E. What fraction of kinetic energy is associated with rotation?
- A body having a moment of inertia about its axis of rotation equal to 3 kg ,m^2 is rotating with angular velocity of 3 rad ,s^ -1...