01305nam a22001697a 450000500170000000800410001702200140005810000270007224500560009926000760015530000160023144000470024750500650029452006540035965000840101385600380109720240110130911.0240109b           ||||| |||| 00| 0 eng d  a0031-921X  aHinrichsen, Peter F.    aRectangular Compound Pendulums (Journal Article)     aWashington b:American Association of Physics Teachers c, October 2023  a572–575p.  aThe Physics Teacherv, Volume 61, Number 7  a***______{For Hard Copy, Please visit Library.}________***

  aAbstract: The small-amplitude periods of uniform rectangular compound pendulums, suspended from a corner, are 
⁠, 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.  aPendulums| Rectangular Compound Pendulum| Harmonic Motion| Experimental Physics  uhttps://doi.org/10.1119/5.0101876