A string trimmer is a tool for cutting grass and weeds it, Ask an Expert

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A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. The string rotates at an angular speed of 45 rev/s, and its tip has a tangential speed of 52 m/s. What is the length of the rotating string?

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