CORTORJ'M FLEXIBILITM t$% 



vndc cltmmanda V A, habebitur ff — j-~ G 



Ad hanc facilius relblucndam ponamus O A — a \ 



. _, . . rr — t > a b ■+ ■ bb -j- hb )f — tahh t 



AG — b ; cntquc ff — - b et j — 



ab-*-bb-i-hh±y/((ab-+-bb) t — ; (at- bb)bh-j-h*) Q w \{„ 



cem igitur valorem pro pcndulo / inucnimus , quod 

 indicat duplici modo corpus ita dc ftatu acquilibrii 

 rcmoucri poffe , vt ofcillationes regulares efficiat. 

 Erit autcm pro hoc duplici valorc difhmtia VA 



fl & — bb — hh±Tl{{ab+.bb)' 1 — ~ ( g b — bb ) b h -*- h* ) 



vndc reperitur OV — OA — AVzr 



ob-t-bb -ir-h b^ H (( ab -+- bb)* — ,(ab — b b)hh~+-h*) _•„ _• 



T5 • ^ Q" 1 " 



bus colligitur fore /+OV=:tf + i + f et f- OV 



■+: V ;; a b -+- b b )» — ~ ( g b — b b ) h h ~j- h* > 



§.38. Commoda hinc dcducitur conftructio , exPig. 8» 

 qua cum corporis duplcx motus ofcillatorius , tum pro 

 vtroquc pcndulum fimplex ifbchronum definietur. Confi- 

 dcretur corpus ACBD in ftatu quictis , ita vt virga 

 OA et rccta AGB fitum vcrticalcm teneant , critque 

 OA=^?, et A G ~ <!; ; fuper O Q tanquam diametro 

 defcribatur femicirculus OFG , et per A ducatur recta 

 AF normalis ad OG erit A F — V a b. Iam cxiftcn- 

 tc momento incrtiae corporis vt ante zz: ? frb fumatur 



h h 



G R — f * ta vt R futurum fit corporis centrum ofcil- 

 lationis, fi ex puncto A fiispenderetur , ac bifariam fece- 

 tur rccta O R in puncto E , crit OE _=_: RE zzz 



"-*- b ___ hh ab^-b b ^-hh . — ob-bb-hh , 



2 r- n — 2 "5 , ct A Ji — —p - tum du- 



catur rccta EF crit EF — -_XlL±±i_rzjL_ilri_± a _12 

 Tom. XIII. V 



