Answer Happy

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