If a rotating body is moving anti-clockwise, the direction of angular velocity is:
Correct answer: D. Perpendicular to both radius and linear velocity
- A. Towards the centre
- B. Along the linear velocity
- C. Away from the centre
- D. Perpendicular to both radius and linear velocity
Explanation
The direction of the angular velocity is along the axis of rotation. For an object rotating clockwise, the angular velocity points away from you along the axis of rotation. For an object rotating counterclockwise, the angular velocity points toward you along the axis of rotation.
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About Vectors and Equilibrium
Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
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