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A long thin rod of length 2L rotates with a constant angular acceleration about an axis that is perpendicular to the rod and passes through its center. What is the ratio of the tangential speed {at any instant) of a point on the end of the rod to that of a point a distance U4 from the end of the rod? C) 423 C) 221 (3122 C) 4:1 {31:4 During the time a compact disc (CD) accelerates from rest to a constant rotational speed of 477 rev/min, it rotates through an angular displacement of 1.5758 rev. What is the angular acceleration of the CD? Note that 1.0 rev = 2x radians.Consider three particles A, B, and C that are rotating about a vertical axis. The masses of these particles are: mA = 6mo, me = 4m, and mc = 3mo. Their perpendicular distances from the axis are: TA = 30, [B = 40, and rc = 8, Rank the three particles according to their moments of inertia, largest to smallest. OB, A, C O A, C, B OB, C, A O C, B, A OC, A, B