Chapter 11 – Rotational Mechanics

A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is K. If radius of the ball be R, then the fraction of total energy associated with its rotational energy will be A ball rolls without slipping. The radius of gyration of the ball [...]

Moment of inertia of a uniform circular disc about a diameter is I. Its moment of inertia about an axis perpendicular to its plane and passing through a point on its rim will be Moment of inertia of a uniform circular disc about a diameter is I. Its moment of inertia about an axis perpendicular [...]

In a rectangle ABCD (BC = 2 AB). The moment of inertia is minimum along axis through In a rectangle ABCD (BC = 2 AB). The moment of inertia is minimum along axis through August 24, 2020 Category: Chapter 11 - Rotational Mechanics , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry [...]

ABC is a triangular plate of uniform thickness. The sides are in the ratio shown in the figure. IAB, IBC and ICA are the moments of inertia of the plate about AB , BC and CA respectively. Which one of the following relations is correct? ABC is a triangular plate of uniform thickness. The sides [...]

The angular momentum of a body with mass (m) and moment of inertia (I) and angular velocity (w) rad/s is equal to The angular momentum of a body with mass (m) and moment of inertia (I) and angular velocity (w) rad/s is equal to August 24, 2020 Category: Chapter 11 - Rotational Mechanics , NEET [...]

The moment of inertia of a disc of mass M and radius R about a tangent to its rim is The moment of inertia of a disc of mass M and radius R about a tangent to its rim is August 24, 2020 Category: Chapter 11 - Rotational Mechanics , NEET Last 32 Years Solved [...]

Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when the center of three balls are joined. The center of mass of system is located at the Three identical metal balls each of radius r are placed touching each other [...]

ABC is a right angled triangular plate of uniform thickness. The sides are such that ABBC as shown in figure. I1 , I2 , I3 are moments of inertia about AB, BC and AC respectively. Then which of the following relations is correct? ABC is a right angled triangular plate of uniform thickness. The sides [...]

A circular disc is to be made by using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis, it should be prepared that A circular disc is to be made by using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis it should be prepared [...]

The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is The ratio of the radii of gyration of a circular disc about a tangential [...]