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Q. Approximation the force a person should exert on a string attached to a 0.130 kg ball to make the ball revolve in a horizontal circle of radius 0.600 m. The ball makes 1.60 revolutions per second. Do not ignore the weight of the ball. In particular, find the magnitude of FT, and the angle θ it makes with horizontal. [Hint: Set the horizontal component of FT equal to maR; also, since there is no vertical motion, what can you say about the vertical component of FT?]

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