A circular disc of radius R is removed from a bigger circular disc of radius 2R

A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the circumferences of the discs coincide. The centre of mass of the new disc is α/R from the centre of the bigger disc. The value of α is

Options

(a) -1/4
(b) -1/3
(c) -1/2
(d) -1/6

Correct Answer:

-1/3

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
  2. What are the unit of K = 1 / (4 π ?¬ツメ)
  3. If the error in the measurement of momentum of particle is (+100%)
  4. A wooden stick 2 m long is floating on the surface of water. The surface tension
  5. Two wires of the same dimensions but resistivities p1 and p2 are connected in series