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A ball suspended by a thread swing in a vertical plane so that its acceleration values at the extreme and lowest positions are equal. Find the thread deflection angle at extreme position.
(a)
(b)
(c)
(d)

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Important Questions on Circular Motion
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The angular displacement in circular motion is,

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Angular displacement is measured in

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A flywheel rotates at a constant speed of . The angle described by the shaft in is,

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Direction of is,

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What is the angular speed of the seconds hand of a watch?

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The angular velocity of a particle rotating in a circular orbit Times per minute will be

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A body of mass is revolving in a horizontal circle. If its frequency of rotation is and radius of circular path is , then the angular speed of the body is,

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What is the angular velocity of the earth?
