The amplitude of the pendulum is the distance from the point of greatest deviation to the point of equilibrium.
If you deflect the pendulum to point (1) and release it, then after completing one full swing it will pass from point (1) to point (2) through point (0) and return back.
In this case, the distance traveled by it will be equal to the 4 amplitudes of the pendulum:
1) point (1) – point (0)
2) point (0) – point (2)
3) point (2) – point (0)
4) point (0) – point (1)
Thus, in one complete swing, the pendulum will pass:
4 * 46 = 184
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