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Someone PLZ help me with this question. If a speck of dust rotates with the DVD what provides the centripetal force?
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Someone PLZ help me with this question. If a speck of dust rotates with the DVD what provides the centripetal force?

User FerdyRod
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1 Answer

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The static friction between the speck and the disk pulls the speck away from a straight line toward a circular path.

User Fooker
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