Hinrichsen, Peter F.   <br/><br/>
Rectangular Compound Pendulums (Journal Article)    

 - Washington   :American Association of Physics Teachers   , October 2023 
 - 572–575p. 
 - The Physics Teacher  , Volume 61, Number 7 .
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<br/><br/> Abstract: The small-amplitude periods of uniform rectangular compound pendulums, suspended from a corner, are <br/>⁠, where g is the acceleration due to gravity; i.e., the period only depends on the length l of the diagonal, and not on the aspect ratio of the rectangle, so it is the same for a square pendulum and a thin rectangular rod. Rectangular pendulums of a variety of aspect ratios were cut from a sheet of cardboard. A thin pin at one corner, or one quarter along the diagonal, functioned as the pivot. The equipment is simple and readily available, so this can be a take-home experiment with students using their smartphones as stopwatches. 
<br/><br/><label>ISSN: </label>0031-921X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pendulums| Rectangular Compound Pendulum| Harmonic Motion| Experimental Physics