Two discs of moment of inertia l₁ and I₂ and angular speeds

Two discs of moment of inertia l₁ and I₂ and angular speeds ?¬ツチ and ?¬ツツ are rotating along collinear axes passing through their centre of mass and perpendicular to their plane.If the two are made to rotate combindly along the same axis the rotational KE of system will be

Options

(a) l₁?¬ツチ + I₂?¬ツツ / 2(l₁ + I₂)
(b) (l₁ + I₂)(?¬ツチ+ ?¬ツツ)² / 2
(c) (l₁?¬ツチ + I₂?)² / 2(l₁ + I₂)
(d) None of these

Correct Answer:

(l₁?¬ツチ + I₂?)² / 2(l₁ + I₂)

Explanation:

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

admin:

Related Questions

  1. Two thin dielectric slabs of dielectric constants K₁ and K₂, (K₁ < K₂) are inserted
  2. A block of mass m1 rests on a horizontal table. A light string connected
  3. The ratio of amplitude of magnetic field to the amplitude of electric field for
  4. A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹
  5. The electric field part of an electromagnetic wave in a medium is represented by