DP2 5 Consider the clock shown in Figure DP2 5 The pendulum rod of length L supports a pendulum disk Assume that the pendulum rod is a massless rigid thin rod and the pendulum disc has mass m Design the length of the pendulum, L, so that the period of motion is 2 seconds Note that with a period of 2 seconds each tick and each tock of the clock represents 1 second, as desired Assume small angles, w1t2, in the analysis so that sin w1t2 L w1t2 Can you explain why most grandfather clocks are about 1 5 m or taller tick tock 1 second later FIGURE DP2 5 (a) Typical clock (photo courtesy of Science and Society SuperStock) and (b) schematic representation of the pendulum Pendulum rod 9(1) Pendulum disk m m g (b) g p(1)

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DP2 5 Consider the clock shown in Figure DP2 5  The pendulum rod of length L supports a pendulum disk  Assume that the pendulum rod is a massless rigid thin rod and the pendulum disc has mass m  Design the length of the pendulum, L, so that the period of motion is 2 seconds  Note that with a period of 2 seconds each tick and each tock of the clock represents 1 second, as desired  Assume small angles, w1t2, in the analysis so that sin w1t2 L w1t2  Can you explain why most grandfather clocks are about 1 5 m or taller   tick   tock  1 second later    FIGURE DP2 5 (a) Typical clock (photo courtesy of Science and Society  SuperStock) and (b) schematic representation of the pendulum  Pendulum rod 9(1) Pendulum disk m m g (b) g  p(1)

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Question: DP2.5 Consider the clock shown in Figure DP2.5. The pendulum rod of length L supports a pendulum disk. Assume that the pendulum rod is a

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