E=Ek+Eп;
E = 1/2 m*w^2*A^2 = 1/2*m*A^2*k/m; E = kA^2/2;
E=1/2*0.9*(67/0.9)*0.02^2=0.0268(Дж);
Ответ: 0.0268 Дж.
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E=Ek+Eп;
E = 1/2 m*w^2*A^2 = 1/2*m*A^2*k/m; E = kA^2/2;
E=1/2*0.9*(67/0.9)*0.02^2=0.0268(Дж);
Ответ: 0.0268 Дж.