Grandfather clocks often are built so that each one-way swing of the pendulum is a second. How long is the length of a simple pendulum for a 2.00 second period?
A) 101.cm
B) 0.993 m
C) 0.500 m
D) 500. cm
E) 24.8 cm

Question

Quizplus · Accepted Answer

The period $T$ of a simple pendulum is given by $T = 2\pi\sqrt{\frac{L}{g}}$, where $L$ is the length of the pendulum and $g$ is the acceleration due to gravity ($9.8 \, \text{m/s}^2$). For a 2.00 second period ($T = 2.00 \, \text{s}$), solving for $L$ gives $L \approx 0.993 \, \text{m}$.

Grandfather Clocks Often Are Built So That Each One-Way Swing