Work, Energy and Power questions
712 published questions with worked solutions.
- A stone tied to a string of length L is whirled in a vertical circle with the other end of the string at the centre. At a certain...
- A ball of mass 0.1 kg is suspended by a string. It is displaced through an angle of 60° and released. When the ball passes...
- A body of mass m is suspended from a string of length l. What is the minimum horizontal velocity that should be given to the body...
- A body of mass m kg is rotating in a vertical circle at the end of a string of length r metre. The difference in the kinetic...
- If the kinetic energy of a body remains constant, then the momentum-mass graph will be
- Two bodies of mass M and m are moving with the same kinetic energy. If they are stopped by the same retarding force, then
- Two bodies of mass m and 4m are moving with equal linear momentum. The ratio of their kinetic energies is
- A body is dropped and observed to bounce to a height greater than the dropping height. Then
- When two bodies collide elastically, the force of interaction between them is
- A rod of mass m and length l is made to stand at an angle of 60° with the vertical. The potential energy of the rod in this...
- A metre stick of mass 400 g is pivoted at one end and displaced through an angle 60°. The increase in its potential energy is
- A body having moment of inertia about its axis of rotation equal to 3 kg - m ^2 is rotating with angular velocity equal to 3...
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