For anti-clockwise rotations, direction of angular velocity is
Correct answer: A. Positive
- A. Positive
- B. Negative
- C. Zero
- D. Infinite
Explanation
The direction of angular velocity is determined by right hand rule. According to right hand rule, if you hold the axis with your right hand and rotate the fingers in the direction of motion of the rotating body then thumb will point the direction of the angular velocity.
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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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