Question: A disk rotates about an axis through its center. Point A is located on its rim and point B is located exactly one third of

A disk rotates about an axis through its center. Point A is located on its rim and point B is located exactly one third of the way from the center toward the rim. What is the ratio of the angular velocity A to that of B, and the tangential velocity vA to that of vB?

(a)

the angular velocity A to that of B

A
B

=

(b)

the tangential velocity vA to that of vB

vA
vB

=

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