Rotational Inertia

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8 Terms

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what is it also knows as?

Moment of inertia

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rotational Inertia

The tendency of a system to resist change in rotational motion

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Symbol,units, formula

Symbol: I

Units: kg*m²

Formula: I=m*r²

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Any point mass or thin hollow cyclometer/hoop

I=m*r²

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Solid cylinder/ puck

I= 1/2 m*r²

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Solid sphere/ bowling ball

I= 2/5 m* r²

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Hollow sphere/ basketball

I= 2/3*m*r²

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What does higher inertia mean?

Higher inertia means more resistance to change in rotational motion