As shown in the figure, there is a light spring on the horizontal table, the left end is fixed at point a, and the right end is at point B in the natural state. There is a vertical spring on the right side of the horizontal table

As shown in the figure, there is a light spring on the horizontal table, the left end is fixed at point a, and the right end is at point B in the natural state. There is a vertical spring on the right side of the horizontal table

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