3. A small mass m attached to the end of a string revolves in a circle on a frictionless tabletop. The other end of the
3. A small mass m attached to the end of a string revolves in a circle on a frictionless tabletop. The other end of the string passes through a hole in the table. Initially, the mass revolves with a speed V1 = D m/s in a circle of radius R1 = C/ 100 m. The string is then pulled slowly through the hole so that the radius is reduced to R2 = B/ 100 Hi. What is the speed, 1/2, of the mass now
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