A ball of mass \( 0.1 \mathrm{~kg} \) is suspended by a string \( 30 \mathrm{~cm} \) long. Keepi...

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A ball of mass \( 0.1 \mathrm{~kg} \) is suspended by a string \( 30 \mathrm{~cm} \) long. Keeping the string always taut, the ball describes a horizontal circle of radius \( 15 \mathrm{~cm} \). Calculate the angular speed of the ball.
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