Two points are located on a rigid wheel that is rotating with decreasing angular velocity about a fixed axis. point a is located in the rim of the wheel and pint b is halfway between the rim and the axis. which one of the following statements concerning this situation is true?
a. the angular velocity at point a is greater than that of point b.
b. both points have the same centripetal acceleration.
c. both points have the same tangential acceleration.
d. both points have the same instantaneous angular velocity.
e. each second, point a turns through a greater angle than point b.