如图是一个质点做简谐运动的振动图象从图中可得 A.在t=0时质点位移为零速度和加速度也零b.在t=4s时质点的速度最大方�沿负 Template




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tomski如图是一个质点做简谐运动的振动图象从图中可得 a.在t=0时质点位移为零速度和加速度也零b.在t=4s时质点的速度最大方�沿负 coloring