Consider a merry-go-round that has the form of a disc with radius 5.5 m and mass 155 kg. if five children, each of mass 20 kg, sit on the outer edge of the merry-go-round, what is the total moment of inertia?

Explanation:

Given:

Considering merry-go-round as a disk, its moment of inertia is given as:

Considering children as point masses, their moment of inertia is given as:

since there are 5 children

Now, total moment of inertia:

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