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Frequency and Period of SHM

AP Physics 1· difficulty 2/5

A pendulum has period 2.0 s2.0~\text{s} on Earth. On the Moon (gM=g/6g_M = g/6), its period is closest to

  • A

    4.9 s4.9~\text{s}

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  • B

    0.8 s0.8~\text{s}

  • C

    12 s12~\text{s}

  • D

    2.0 s2.0~\text{s}

Explanation

TM=TEg/gM=2.06≈4.9 sT_M = T_E\sqrt{g/g_M} = 2.0\sqrt 6 \approx 4.9~\text{s}.

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