pt.m₃
Vectorial: G₃+T₂=m₃a
Scalar: Ox:m₃g-T₂=m₃a (1)
pt.m₂
Vectorial:T₂+T₁+N₂+G₂=m₂a
Scalar:Ox:T₂-m₂g-T₁=m₂a (2)
Oy:N₂-m₂g=0=>N₂=m₂g
pt.m₁
Vectorial:T₁+N₁+G₁=m₁a
Scalar:Ox:T₁-m₁g=m₁a (3)
Oy:N₁-m₁g=0=>N₁=m₁g
Din (1)+(2)+(3)=>a=g(m₃-m₂-m₁)/(m₁+m₂+m₃)
T₂=m₃(g-a)
T₁=m₁(a+g)
F²=2T₂²=>F=T₂√2 (la asta nu-s sigur)
