A 29 kg mass is connected to a nail on a frictionless table by a massless string 1.5 m long. There is no appreciable friction between the nail and the string. If the tension in the string is 57 N while the mass moves in a uniform circle on the table, how long does it take for the mass to make one complete revolution? (Give answer to the nearest 0.1 s) Please explain how to get the answer, thank you :)

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