Phy 231
Your 'cq_1_10.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A pendulum requires 2 seconds to complete a cycle, which consists of a complete back-and-forth oscillation (extreme point to equilibrium to opposite extreme point back to equilibrium and finally to the original extreme point). As long as the amplitude of the motion (the amplitude is the distance from the equilibrium position to the extreme point) is small compared to the length of the pendulum, the time required for a cycle is independent of the amplitude.
• How long does it take to get from one extreme point to the other, how long from an extreme point to equilibrium, and how long to go from extreme point to equilibrium to opposite extreme point and back to equilibrium?
answer/question/discussion:
Answer: It would take 1 second to get from one extreme point to the other. It would take .5 seconds to get from one extreme point to the equilibrium. To go from extreme point to equilibrium to opposite extreme point and back to equilibrium would take .5, 1, and 1.5 seconds.
• What reasonable assumption did you make to arrive at your answers?
answer/question/discussion:
Answer: I made the assumption that at each half swing of the pendulum, the average velocity during that time would be equal to the next half swings velocity. And this goes on forever, assuming no friction.
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10 minutes
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&#Good responses. See my notes and let me know if you have questions. &#