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A disc of radius r has a light pole fixed perpendicular to the disc at the circumference which in turn has a pendulum of length r attached to its other end. The disc is rotated with a constant angular speed w. The string is making an angle 30degree with the rod. Then the angular speed w is. a) ( √3g/r)^1/2. b) (g/√3r) ^ 1/2. c) ( √3g/2r)^1/2. d) (2g/3√3r)^1/2
A disc of radius r has a light pole fixed perpendicular to the disc at the circumference which in turn has a pendulum of length r attached to its other end. The disc is rotated with a constant angular speed w. The string is making an angle 30degree with the rod. Then the angular speed w is.                 a) ( √3g/r)^1/2.               b) (g/√3r) ^ 1/2.             c) ( √3g/2r)^1/2.             d) (2g/3√3r)^1/2

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4 years ago

Saurabh Koranglekar
10341 Points
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8 months ago
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