Question

*The centre of mass of a uniform disc of radius 'R' is located:* 1️⃣ on the rim 2️⃣ a distance 2R/3 from the centre 3️⃣ at the centre 4️⃣ a distance R/3 from the centre​

Answer 1

Answer:

The centre of mass of a disc of uniform mass and radius r, when a circular portion of radius beta has been removed from it such that centre of the hole

Explanation:

Let , m be the total mass of the disc before the portion was cut.x be the new position of centre of mass.mass of cut disc = mpir^2 (pibeta ^2) = beta^2r^2 ...