Question

Why doesn't mass affect the period of a pendulum?

Answer 1

Pendulum

1. A pendulum is a body suspended from a fixed point so that it can swing back and forth under the influence of gravity.
2. The time interval of a pendulum's complete back-and-forth movement is constant.
3. Period of a pendulum is given by the equation, $T=2\mathrm{\pi }\sqrt{\frac{\mathrm{l}}{\mathrm{g}}}$ where $l$ is the length of the string of pendulum and $g$ is acceleration due to gravity.
4. From the above equation, it is clear that mass doesn't effect the period of a pendulum