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Bunaaa am nevoie urgenta de rezolvarea problemei 45,va rog!!! Dau coroana!!! Muultumesc anticipat!!

Bunaaa Am Nevoie Urgenta De Rezolvarea Problemei 45va Rog Dau Coroana Muultumesc Anticipat class=
Bunaaa Am Nevoie Urgenta De Rezolvarea Problemei 45va Rog Dau Coroana Muultumesc Anticipat class=

Răspuns :

m₁=40 g=0,04 kg

m₂=80 g=0,08 kg

Ep=E=>m₁gl=m₁v₁²/2|:m₁=>v₁=√(2gl)=√(2*10*1)=√20=4,47 m/s

v₁'=2m₁v₁/(m₁+m₂)-v₁=2*0,04*4,47/(0,04+0,08)-4,47=0,35/0,12-4,47=2,98-4,47=-1,5 m/s

v₂'=2m₁v₁/(m₁+m₂)-v₂=2*0,04*4,47/(0,04+0,08)-0≈3 m/s

m₁v₁'²/2=m₁gh₁|:m₁=>h₁=v₁'²/2g=(-1,5)²/20=2,25/20=0,112 m=11,2 cm

analog h²=v₂'²/2g=3²/20=9/20=0,45 m=45 cm

h₁=h₂=>m₁/m₂=1/3