50. A disk (radius = 8.0 cm) rotates about a fixed axis passing through its center and, starting from rest, accelerates at a constant rate to an angular velocity of 4.0 rad/s in 2.0 s. What is the magnitude of the total linear acceleration at a point on the edge of the disk when the angular velocity of the disk is 1.5 rad/s?
(A)16.0 cm/s2
(B)18.0 cm/s2
(C)24.0 cm/s2
(D)34.0 cm/s2
(E)44.0 cm/s2
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