k=1000 Н/м x=0.03 м m=0.045 кг v=?
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k*x²/2=m*v²/2
v=x*√(k/m)=0.03*√(1000/0.045)=4.47 м/с
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k=1000 Н/м x=0.03 м m=0.045 кг v=?
===
k*x²/2=m*v²/2
v=x*√(k/m)=0.03*√(1000/0.045)=4.47 м/с
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