图(甲)所示为以O点为平衡位置、在A、B两点间做简谐运动的弹簧振

图(甲)所示为以O点为平衡位置、在AB两点间做简谐运动的弹簧振子,图(乙)为这个弹簧振子的振动图象,由图可知下列说法中正确的是

   

A.在t0.2s时,弹簧振子可能运动到B位置

B.在t0.1st0.3s两个时刻,弹簧振子的速度相同

C.从t0t0.2s的时间内,弹簧振子的动能持续地增加

D.在t0.2st0.6s两个时刻,弹簧振子的加速度相同

答案

A

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