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'Simple Pendulum' printed from https://nrich.maths.org/
- Read an article on dimensional analysis.
- The period could be expressed as $T = \alpha \times m^{A}g^{B}l^{C}$ where we need to choose A, B, C such that the dimensions on both sides of equation agrees. $\alpha$ is a constant which can be found by experiment.
- The acceleration of gravity has dimensions $L/T^2$ (meter per second squared).