Two discs are rotating about their axes, normal to the discs and passing through the centres of ...

Two discs of moments of inertia I_1 and I_2 about their respective axes (normal to the disc and passing through the centre), and rotating with angular speed omega_1 and omega_2 are brought into contact face to face with their axes of rotation coincident. What is the loss in kinetic energy of the system in the process?

Two discs of moments of inertia I_(1) and I_(2) about their respective axes (normal to the disc and passing through the centre), and rotating with angular speed omega_(1) and omega_(2) are brought into contact face to face with their axes of rotation coincident (i) What is the angular speed of the two-disc system ? (ii) Show that the kinetic energy of the combined system is less than the sum of the initial kinetic energies of the two discs. How do you account for this loss in energy ? Take omega_(1) ne omega_(2) .

Two discs of moments of inertia I_(1) and I_(2) about their respective axes (normal to the disc and passing through the centre) and rotating with angular speeds omega_(1) and omega_(2) are brought into contact face to face with their axes of rotation coincident. (a) Does the law of conservation of angular momentum apply to the situation ? Why ? (b) Find the angular speed of the two-disc system. (c ) Calculate the loss in kinetic energy of the system in the process. (d) Account for this loss.

Given the moment of interia of a disc of mass M and radii R about any of its diameters to be (MR^(2))/4 . What is its moment of interia about an axis normal to the disc and passing through a point on its edge .

Radius of gyration of disc rotating about an axis perpendicular to its plane passing through through its centre is (If R is the radius of disc)

The M.I. of a uniform semicircular disc of mass M and radius R about a line perpendicular to the plane of the disc and passing through the centre is

One quarter sector is cut from a uniform disc of radius R. This sector has mass M. It is made to rotate about a line perpendicular to its plane and passing through the centre of the original disc. What is its moment of inertia about the axis of rotation ?