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How can you predict the number of swings an 80 cm pendulum will make in 15 seconds?
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How can you predict the number of swings an 80 cm pendulum will make in 15 seconds?

User Timir
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The period of the pendulum is equal to the square root (0.8 / 9.8). That is the time for one oscillation T. You then divide 15/T to find number of swings in 15 seconds.
User Mathias Bak
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