The Period of a Pendulum Is the Time It Takes

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 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-feet pendulum. Express your answer to the nearest tenth of a second.

A) 2.4 seconds
B) 2.9 seconds
C) 2.2 seconds
D) 2.5 seconds
E) 0.8 seconds