Question Detail
Question
Two points on a rotating disc are at distances r₁ and r₂ from the center, with r₂ > r₁. Which statement about their angular speeds (ω) and tangential speeds (v) is correct?
Correct Answer
Option C is the correct answer.
Detailed Explanation
All points on a rigid rotating object have the same angular speed ω. However, tangential speed v depends on distance from the axis (v = rω). Therefore, since r₂ > r₁, the point farther from the center has a greater tangential speed: v₁ < v₂.
Hint
Angular speed is the same for all points on a rigid body. Tangential speed depends on the radius.