Statement I : The centre of mass of a circular disc lies always at the centre of the disc.
Statement II : Circular disc is a symmetrical body.

Statement I : The centre of mass of a circular disc with uniform mass distribution lies always at the centre of the disc. Statement II : Circular disc with uniform mass distribution is a symmetrical body.

Centre of mass of semi circular disc by two unique methods.

Centre Of Mass Of Uniform Semi Circular Disc

The moment of inertia of a uniform semicircular disc of mass disc through the centre is

Calculate moment of inertia of a circular disc about a transverse axis through the centre of the disc. Given, diameter of disc is 40 cm , thickness = 7 cm and density of material of disc = 9 g cm^(-3) .

A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the circumference of the discs coincoid . The centre of mass of the new disc is alphaR from the centre of the bigger disc . the value of alpha is