A thin uniform rod of mass m and length l is free to rotate about its upper end. When it…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A thin uniform rod of mass m and length l is free to rotate about its upper end. When it is at rest, it receives an impulse I at its lowest point, normal to its length. Immediately after impact,
- the angular momentum of the rod is Il
- the angular velocity of the rod is 3I/ml
- the kinetic energy of the rod is 3I2/2m
- the linear velocity of the midpoint of the rod is 3I/2m
Answer
(A) the angular momentum of the rod is I l, (B) the angular velocity of the rod is 3I/m l, (C) the kinetic energy of the rod is 3I2/2m, (D) the linear velocity of the midpoint of the rod is 3I/2m
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- In the above problem, let t 1 and t 2 be the times when pure rolling of solid sphere and of hollow sphere is…
- A rod AC of length l and mass m is kept on a horizontal smooth plane. It is free to rotate and move. A…
- A ring of radius r and mass m rotates about an axis passing through its centre and perpendicular to its plane…
- A ring, hollow sphere and solid sphere are rolled down from inclined plane. Which will take least time to…
- A hollow sphere is released from the top of an inclined plane of inclination q. Find the kinetic energy of…
- Statement–1: A solid sphere is rolling on a rough horizontal surface. Acceleration of contact point is zero…
- A uniform beam of length L whose mass ‘m’ is 1.8 kg rests with its ends on two digital scales, as in figure…
- In the above question, the tangential speed of the water drop on leaving the rim of the umbrella is :
More Rotational Motion questions · Browse all practice questions