k=60 H/м x=0,05 м Ep-? Ep=k*x^2/2=60*0,05^2/2=0,075 Дж
F=kx,k=F/x,Еп=кх^2/2=Fx/2=2000*2*10^-3/2=2 Дж
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k=60 H/м x=0,05 м Ep-? Ep=k*x^2/2=60*0,05^2/2=0,075 Дж
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F=kx,k=F/x,Еп=кх^2/2=Fx/2=2000*2*10^-3/2=2 Дж