Question: An object attached to the end of a string swings in a vertical circle (R = 1.2 m), as shown. At an instant when

An object attached to the end of a string swings in a

An object attached to the end of a string swings in a vertical circle (R = 1.2 m), as shown. At an instant when 0= 30, the speed of the object is 5.1 m/s and the tension in the string has a magnitude of 20 N. What is the mass of the object?

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