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The period of a pendulum is the time it takes to swing from left to right and back again.
The period T seconds, of a pendulum is directly proportional to the square root of its length, Lcm.

When L=25, T=1

Find a formula for T in terms of L.

  • algebra -

    T = 2pi*sqrt(L/g).

    T = 1 sec. = Period.
    L = Length in cm.
    g = 980 cm/s^2.

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