Varignon, Pierre
,
Projet d' une nouvelle mechanique : avec Un examen de l' opinion de M. Borelli sur les propriétez des poids suspendus par des cordes
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0037
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MECHANIQUE.
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FONDAMENTALE
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DES POIDS SUSPENDUS
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AVEC DES CORDES</
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tousles angles poſſibles qu’elles peuvent faire
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entre-elles.</
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xml:space
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11.
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12.
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13.
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14.
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15.
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16.
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17.</
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les puiſſances P & </
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<
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toujours à cbacune d’elles, comme le ſinus de l’angle P A R que
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leurs cordes font entre-elles, à chacun des ſinus des angles
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RAK & </
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de ce poids, chacune de ces cordes réciproquement priſes. </
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exemple, il eſt à la puiſſance P, comme le ſinus de R A P
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au ſinus de R A K; </
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<
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">à la puiſſance R, comme le mème
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ſinus de R A P au ſinus de P A K.</
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P & </
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mes qu’elles feroient, ſi elles le pouſſoient chacune
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ſuivant ſa ligne de direction AP & </
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