Navigate

A thin and circular disc of mass M and radius R is rotating in a horizontal plane

A thin and circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity ?.If another disc of same dimensions but of mass M/4 is placed gently on the first disc coaxially, then the new angular velocity of the system is

Options

(a) 5 /4 ω
(b) 2 / 3 ω
(c) 4 / 5 ω
(d) 3 / 2 ω

Correct Answer:

4 / 5 ω

Explanation:

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

admin:

Related Questions

  1. A projectile is thrown in the upward direction making an angle of 60°with the horizontal
  2. An electric dipole is placed at an angle 30°with an electric field intensity 2×10⁵N/C.
  3. Graph of force per unit length between two long parallel current carrying
  4. To draw the maximum current from a combination of cells, how should be the cells
  5. If a body travels half the distance with velocity v1 and the next half with velocity v2