The Period of a Pendulum Is the Time It Takes $T = 2 \pi \sqrt { \frac { L } { 32 } }$

question 117

Multiple Choice

The period of a pendulum is the time it takes to swing from one side to the other side and back. The formula $T = 2 \pi \sqrt { \frac { L } { 32 } }$ where T represents the time in seconds and L the length in feet, can be used to determine the period of a pendulum (see the figure) . Find the period of a 4.5-feet pendulum. Express your answer to the nearest tenth of a second.

• A) 2.7 seconds
• B) 3.1 seconds
• C) 2.6 seconds
• D) 2.4 seconds

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