The angular displacement is assigned a positive sign when the rotation is:
Correct answer: B. Anti-clockwise
- A. Clockwise
- B. Anti-clockwise
- C. Perpendicular
- D. Parallel
Explanation
The direction of angular displacement in an anticlockwise sense is considered as positive, while the direction of angular displacement in a clockwise sense is considered as negative so the answer is B.
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About Angular Displacement
Angular displacement measures the change in a body’s angular position and is expressed in radians or degrees, with anticlockwise and clockwise directions assigned signs. It connects to arc length, angular velocity and angular acceleration, and must be distinguished from ordinary linear displacement in rotational motion.
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