Two discs with moments of inertia I₁ = 4 kg·m² and I₂ = 2 kg·m² a… | JEE Main 2024 Physics PYQ

MCQMediumJEE Main 2024 · 30 January, Shift 2Elastic & Inelastic Collisions

Two discs with moments of inertia $I_1 = 4 \, \text{kg}\cdot\text{m}^2$ and $I_2 = 2 \, \text{kg}\cdot\text{m}^2$ about their central axes, rotating with angular speeds $10 \, \text{rad/s}$ and $4 \, \text{rad/s}$ , respectively, are brought into contact face-to-face. The loss in kinetic energy of the system is:

A
$20 \, \text{J}$
B
$24 \, \text{J}$
C
$30 \, \text{J}$
D
$18 \, \text{J}$

Answer & step-by-step solution

Practice more Elastic & Inelastic Collisions questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Start free trial More on Elastic & Inelastic Collisions

Answer & step-by-step solution

Practice more Elastic & Inelastic Collisions questions

Related questions