A Disk Is Fixed To A Horizontal Axle That Extends Between Two Supports As Shown In The Figure Frictional Forces Betwee 1 (120.26 KiB) Viewed 38 times
A Disk Is Fixed To A Horizontal Axle That Extends Between Two Supports As Shown In The Figure Frictional Forces Betwee 2 (80.81 KiB) Viewed 38 times
A disk is fixed to a horizontal axle that extends between two supports, as shown in the figure. Frictional forces between the axle and the supports is not negligible. At time ty, the disk rotates about the center axle with an initial angular speed wd. A student measures the angular displacement AB, of a point on the edge of the disk from time t, until the disk no longer rotates. The angular acceleration of the disk is determined to be ad, and this value remains constant. Based on the data, if possible, how could the student predict the angular displacement of a point on the edge of the disk from time te until the disk no longer rotates if the initial angular speed is increased to 2wd ? Justify your selection. Use the equation w2 = + 2a(0-20). because the disk comes to rest, wo = 2wd. and a = Qd. Solve for e-Bo. Use the equation w2 = + 2a(0 - 60). (B) because the disk comes to rest, wb = 2wd. and a = 204. Solve for 0-00- An equation is not necessary, because the point on the edge of the disk will have the same angular displacement regardless of its initial angular velocity. The angular displacement cannot be determined because an equation that includes a term for time must be used.
Question 11 A disk is fixed to a horizontal axle that extends between two supports, as shown in the figure. Frictional forces between the axle and the supports is not negligible. At time ts, th A rotates about the center axle with an initial angular spee A student measures the angular displacement A0, of a point
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