p₁=p₀+mg/S=1105+6*10/0,002=1105+30000=31105 Pa
p₁=p₀+mg/S=>p₁-p₀=Mg/S
p₂=p₀+(M+m)g/S=>p₂-p₀=(M+m)g/S
_____________":"
(p₁-p₀)/(p₂-p₀)=m/(M+m)
T₁=T₂=T= const.
V₂=V₁/2
p₁V₁=p₂V₂=>p₂=p₁V₁/V₂=p₁V₁/V₁/2=2p₁=2*31105=62210 Pa
(p₁-p₀)/(p₂-p₀)=m/(M+m)<=>(31105-1105)/(62210-1105)=6/(6+M)<=>30000/61105=6/(6+M)<=>0,49(6+M)=6=>6+M=12,24=>M=6,24 kg