If a wheel turns with a constant angular speed then:
Correct answer: D. The wheel turns through equal angles in equal times.
- A. Each point on its rim moves with constant velocity.
- B. Each point on its rim moves with constant acceleration
- C. The angle through which the wheel turns in each second decreases as time goes on.
- D. The wheel turns through equal angles in equal times.
Explanation
When a wheel turns with constant angular speed, each point on its rim travels through the same angle in equal intervals of time. This is because the angular velocity is constant.
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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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