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These graphs are from the analysis of the motion of a simple pendulum. The movie was made on an LCII (Performa 400) with 4 MB of memory, 160x40 pixels, running at 12 frames per second. Time and horizontal position were copied from the HyperCard stack and pasted into the data table in Graphical Analysis 2.0.1. Then velocity and acceleration were calculated from v=Delta(x)/Delta(t) and a=Delta(v)/Delta(t).
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