Algebra

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This has me stumped
The approximate time in seconds, that it takes an object to fall d feet under the influence of gravity is given by mathematical model t=square root d/16. A rock dropped from a cliff hits the ground 6 seconds later. How high is the cliff?

  • Algebra -

    or rearranged
    distance fallen = 16 t^2

    so if t=6
    dist = 16(36) = 576

    so the cliff is 576 feet high

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