Figure P9.74 shows a \(100 \mathrm{~g}\) puck revolving at \(100 \mathrm{rpm}\) on a 20-cm-radius circle on a frictionless table. A string attached to the puck passes through a hole in the middle of the table. The end of the string below the table is then slowly pulled down until the puck is revolving in a \(10-\mathrm{cm}\)-radius circle. How many revolutions per minute does the puck make at this new radius?

Transcribed Image Text:

FIGURE P9.74 20 cm 100 g