A bob of mass m attached to an inextensible string of length l ⁡ is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed ω rad/s about the vertical. About th

Question

A bob of mass m attached to an inextensible string of length l ⁡ is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed ω rad/s about the vertical. About the point of suspension :

TestHub · Accepted Answer

τ = mg × l sin θ . (Direction parallel to plane of rotation of particle) as τ is perpendicular to L → , direction of L changes but magnitude remains same.

Physics - Rotation Question with Solution | TestHub

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