h=10 м vo=5 м/с v=?
===
m*v²/2=m*g*h+m*vo²/2
v=√(2*g*h+vo²)=√(2*10*10+5²)=15 м/с
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h=10 м vo=5 м/с v=?
===
m*v²/2=m*g*h+m*vo²/2
v=√(2*g*h+vo²)=√(2*10*10+5²)=15 м/с
=============================