mexanik energiyaning saqlanish qonuni va uning qo’llanishi

1403772958_46713.doc m f a = s m f g 2 2 = 2 2 mg s f = a e k = 2 2 mg e k = 2 2 2 2 mg mg a = - = 2 2 mg e k = 2 2 mg mgh h p a = = = mgh mgh e k = f p p ò ò - = - = = h mgh pdh da a 0 2 2 mg mgh e p = 2 2 mv e k = 2 2 mv mgh e e k p = = = k p e e mv mgh + = + 2 2 ) ( 1 2 1 2 k k k k …

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