An object rotates about a fixed axis, and the angular position of a reference line on the object is given by ? = 0.60e8t, where ? is in radians and t is in seconds. Consider a point on the object that is 8.0 cm from the axis of rotation. At t = 0, what are the magnitudes of the point's
(a) tangential component of acceleration and
(b) radial component of acceleration?