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A body is whirled in a horizontal circle of radius 20 cm. It has an angular velocity of 10 rad/s. What is its linear velocity at any point on circular path

1. √2 m/s
2. 2 m/s
3. 10 m/s
4. 20 m/s

Correct answer: 2 m/s

Solution

The linear velocity (v) in circular motion is given by v = rω, where r is the radius and ω is the angular velocity. Substituting r = 0.2 m and ω = 10 rad/s, we get v = 0.2 × 10 = 2 m/s.

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