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 v = 2.4 m/s in a circle of radius r, = 0.80 m. The string is then pulled slowly through the hole so that the radius is reduced to r, = 0.48 m. What is the speed, v,, of the mass now? FIGURE 8–62 Problem 88.

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 v = 2.4 m/s in a circle of radius r, = 0.80 m. The string is then pulled slowly through the hole so that the radius is reduced to r, = 0.48 m. What is the speed, v,, of the mass now? FIGURE 8–62 Problem 88.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 8P: A bicycle is turned upside down while its owner repairs a flat tire. A friend spins the other wheel...

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