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A ball of mass m = 3 kg is attached to a vertical pole by two ropes and moves in a horizontal circle at a constant speed. The tension in the upper rope is 100 N. Each rope is 0.5 m long and makes an angle ? = 60? with the pole.
(a) Find the tension in the lower rope.
(b) Find the time it takes the ball to completem two revolutions.
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