legea lui Arhimede spune ca [tex] \frac{R}{F}= \frac{bF}{bR} [/tex]
[tex] \frac{32000 N}{800 N}= \frac{bF}{2 m- bF} [/tex]⇒bF=[tex] \frac{32000*(2-bF)}{800} [/tex]=40(2-bF)=80-40bF⇒41bF=80 m⇒bF=[tex] \frac{80}{41}m [/tex]
bR+bF=bR+[tex] \frac{80}{41}m [/tex]=2 m⇒bR=[tex] \frac{82}{41}m- \frac{80}{41}m [/tex]=[tex] \frac{2}{41}m [/tex]
