An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The tension in the string is T

Find the mass of the puck when the length of the string is 2.2m , string tension is 5.0N , and the tangential speed of the puck is 3.0m/s .

Express your answer to two significant figures and include the appropriate units.