17. Periodic Motion
Energy in Pendulums
14:44 minutes
Problem 15
Textbook Question
Textbook QuestionA 350 g mass on a 45-cm-long string is released at an angle of 4.5° from vertical. It has a damping constant of 0.010 kg/s. After 25 s, (a) how many oscillations has it completed and (b) what fraction of the initial energy has been lost?
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