Angular displacement becomes zero when:
Correct answer: C. Options A and B both are possible
- A. Velocity is zero
- B. Radial distance is zero
- C. Options A and B both are possible
- D. It can never be zero
Explanation
θ= ωt [ θ is angular displacement] ω= vr [ where v is velocity and ω is angular velocity]θ= vrt , so when v is zero θ is also zero. Option B: At the axis since r=0 linear velocity also becomes a zero. This shows that the particles at the axis are stationary
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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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