A) the tangent to the circular path
B) the inward radius
C) the outward radius
D) the axis of rotation
Correct Answer: D
Solution :
Angular velocity is the vector quantity which represents the process of rotation (change of orientation) that occurs at as instant of time. For a rigid body it supplements translational velocity of the centre of mass to describe the full motion. The line of direction of the angular velocity is given by the axis of rotation and the right hand rule indicates the direction. Note: If you curl the fingers of your right hand to follow the direction of the rotation, then the direction of the angular velocity vector is indicated by your curled fingers.
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