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March 29, 2017

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The period (the time required for one complete swing) of a simple pendulum varies directly as the square root of its length. If a pendulum 12 feet long has a period of 4 seconds, find the period of a pendulum 3 feet long.

  • College Algebra - ,

    Since the second pendulum is 1/4 as long as the first pendulum, the period will be sqrt(1/4) or 1/2 as long as the first pendulum. That would be 2 seconds.

  • College Algebra - ,

    4.(3)^1/2
    6.92

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