The figure as shown below is a rigid body undergoing planar motion. The absolute tangential accelerations of the points R and S on the body are 150 mm/sec2 and 300 mm/ sec2 respectively in the directions shown. What is the angular acceleration of the rigid body?

The figure as shown below is a rigid body undergoing planar motion. The absolute tangential accelerations of the points R and S on the body are 150 mm/sec2 and 300 mm/ sec2 respectively in the directions shown. What is the angular acceleration of the rigid body?

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Question

The figure as shown below is a rigid body undergoing planar motion.
The absolute tangential accelerations of the points R and S on the
body are 150 mm/sec2 and 300 mm/ sec2 respectively in the
directions shown. What is the angular acceleration of the rigid
body?

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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