A small mass m attached to the end of a string revolves in a circle on a
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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 (Fig. 8-62). Initially, the mass revolves with a speed v1 = 2.4 m/s in a circle of radius r1 = 0.80 m. The string is then pulled slowly through the hole so that the radius is reduced to r2 = 0.48 m. What is the speed, v2, of the mass now?
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There is no torque applied to the block so its a...View the full answer
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Somshukla Chakraborty
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