2. A pendulum is built by attaching a 1-kg mass to the end of a 120 cm-long string. The mass is
displaced 30 cm from the center and released. It begins to swing back and forth, taking 2 seconds
to travel from one side to the other and back again. Which of the following describes the period
of this pendulum?
F. 1 kg
G. 2 s
H. 30 cm
J. 120 cm
Answers: 3
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2. A pendulum is built by attaching a 1-kg mass to the end of a 120 cm-long string. The mass is
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