The angular displacement of a point on a rotating disc is doubled while the radius of…

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

The angular displacement of a point on a rotating disc is doubled while the radius of the disc is reduced to half of its original value. How does the arc length traced by the point change? (a) It becomes half the original (b) It remains unchanged (c) It becomes 1.51.5 times the original (d) It becomes twice the original

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