The forum discussion centers on the accuracy of a free body diagram for a pendulum with a maximum amplitude of 30 degrees. Participants confirm that the diagram correctly reflects the angle and amplitude, clarifying that amplitude measures the maximum displacement from the vertical. The period of the pendulum is defined as the time taken for one complete cycle, which includes passing through the equilibrium position twice. The final consensus is that the diagram is correct, with no further adjustments needed.
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Right. The period is the time it takes for one complete cycle. If it starts out to the right at 30 degrees at t=0, then in one period it will have gone to equilibrium, moved to the left at 30 degrees, come back to equilibrium and then back to the starting point at 30 degrees to the right.-EquinoX- said:ok, and the period of this pendulum is basically the time it takes the position I move the pendulum 30 degrees away from the equilibrium then I release it and it goes back again to the same position right?
No, the angle shown is the correct amplitude.kevtimc said:I think your theta should be flipped to the bottom. Currently, your amplitude is 150^{o}.
Doc Al said:Right. The period is the time it takes for one complete cycle. If it starts out to the right at 30 degrees at t=0, then in one period it will have gone to equilibrium, moved to the left at 30 degrees, come back to equilibrium and then back to the starting point at 30 degrees to the right.
Doc Al said:No, the angle shown is the correct amplitude.