Two coaxial discs, having moments of inertia I1 and 2I1 , are rotating with respective angular velocities ω1 and 2ω1 , about their common axis. They are brought in contact with each other and thereafter they rotate with a common angular velocity. If Ef and Ei are the final and initial total energies, then (Ef−Ei) is:
Held on 10 Apr 2019 · Verified 6 Jul 2026.
6I1ω12
83I1ω12
−12I1ω12
−24I1ω12
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