Pe 2 plzz am raspunsul dar nu imi iese

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v₂²=v₁²-2a(d₂-d₁)<=>6²=8²-2(32-18)a<=>36-64=-2*14a<=>28=28a=>a=1 m/s²
v₁²=vo²-2ad₁<=>8²=vo²-2*1*18<=>64+36=vo²<=>100=vo²=>vo=√100=10 m/s