A tetherball is tied to the end of a 2.1-m string of negligible mass.

A tetherball is tied to the end of a 2.1-m string of negligible mass. The ball is struck so that it moves in uniform circular motion in a horizontal plane, and the string makes an angle of 26° with the vertical pole. The mass of the ball is 1.3 kg. What is the tension in the string?

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