如图甲所示,悬挂在竖直方�上的弹簧振子,在c、d两点之间做简谐运动,o点为平衡位置。振子到达d点开始计时。以竖直�下为正方�,在一个�期内的 Template


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tomski如图甲所示,悬挂在竖直方�上的弹簧振子,在c、d两点之间做简谐运动,o点为平衡位置。振子到达d点开始计时。以竖直�下为正方�,在一个�期内的 coloring