Astring 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 63 m/s. what is the length of the rotating string?
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Astring trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that...
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