in which case application of angular velocity is useful
Correct answer: A. when a body is rotating
- A. when a body is rotating
- B. when velocity of body is in straight line
- C. when velocity is in straight line
- D. none of these
Explanation
Angular velocity: Angular velocity is a specific measure of rotational motion. It describes the rate of change of the angular position of an object, essentially how fast an object is rotating about an axis.Linear velocity: Velocity, a different concept, refers to the rate of change of an object's position in a straight line. It doesn't involve any rotation.Therefore, the application of angular velocity is specifically relevant and useful when a body is rotating. Options b and c mentioning "straight line" velocity are not directly related to the concept of 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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