17. Periodic Motion
Simple Harmonic Motion of Pendulums
11:45 minutes
Problem 14.51
Textbook Question
Textbook Question(II) The balance wheel of a mechanical (analog) watch is a thin ring of radius 0.95 cm attached to a coil spring (roughly like Fig. 14–35). It oscillates with a frequency of 1.55 Hz. If a torque of 1.1 x 10⁻⁵ m • N causes the wheel to rotate 45°, calculate the mass of the balance wheel.
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