If a rotating body is moving counter clockwise, direction of angular velocity will be:
Correct answer: C. Along the axis of rotation
- A. Along linear velocity
- B. Towards the center
- C. Along the axis of rotation
- D. Away from center
Explanation
Angular velocity is an axial vector, directed along the axis of rotation according to the right‑hand rule. For counterclockwise rotation (as seen from above) ω points along the positive axis of rotation.
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About Angular Velocity
Angular velocity describes how quickly angular displacement changes with time, with ω = Δθ/Δt and units of radians per second. Questions relate angular and linear motion through v = rω, use the direction given by the right hand rule, and distinguish angular velocity from angular acceleration and ordinary frequency.
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