The step pulleys shown in the figure below are connected by a crossed belt. If the angular acceleration of C is 2 rad/s2, what time is required for A to travel 180ft from rest? Through what distance will D move while A is moving 240ft/s?

The step pulleys shown in the figure below are connected by a crossed belt. If the angular acceleration of C is 2 rad/s2, what time is required for A to travel 180ft from rest? Through what distance will D move while A is moving 240ft/s?

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Question

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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