h1=v2²/(2*g) h2=(v1²-v2²)/(2*g)
v2=√(2*g(h1-h2)=√(2*10*10)=14 м/с
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h1=v2²/(2*g) h2=(v1²-v2²)/(2*g)
v2=√(2*g(h1-h2)=√(2*10*10)=14 м/с