The direction of the angular velocity vector is along:
Correct answer: B. The axis of rotation
- A. The tangent to the circular path
- B. The axis of rotation
- C. The outward radius
- D. The inward radius
Explanation
When an object rotates, it has an axis around which it spins. The direction of the angular velocity vector is parallel to this axis of rotation. It tells us the direction in which the object is rotating and how fast it's spinning. So, if you imagine a spinning top, the angular velocity vector would be along the axis that the top is spinning around.
This question appeared on the KMU Centralized Admission Test 2020 paper, which you can sit online with every answer explained.
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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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