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tiny-tim

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hi michael!

just as the*mass* (or *inertia*) of a body is the ratio between any *force* on it and its (*linear*) acceleration,

so the*moment of inertia* of a body is the ratio between the *moment of force* (also called the torque) on it and its *angular* acceleration

in other words:*mass* (or *inertia*) tells you how difficult it is to *push*, while *moment of inertia* tells you how difficult it is to turn

(for examples, see the pf library or wikipedia)

just as the

so the

in other words:

(for examples, see the pf library or wikipedia)

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