W that angular velocity about centre of circle =2 times about angular velocity about any point on the circumference.
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circles, we know that the angle subtended at the centre of the circle is twice the angle subtended at any point on the circle
=> rate of change of angle at centre is double that of the angle at circumference
=> angular velocity about centre is double to that about circumference
=> rate of change of angle at centre is double that of the angle at circumference
=> angular velocity about centre is double to that about circumference
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