The inertia constants of two groups of machines which do not swing together are M1 and M2. The equivalent

The inertia constants of two groups of machines which do not swing together are M1 and M2. The equivalent inertia constant of the system is
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The inertia constants of two groups of machines which do not swing together are M1 and M2. The equivalent inertia constant of the system is M1M2/M1+M2

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