已知甲、乙两车由同一起点同时出发,并沿同一路线(假定为直线)

已知甲、乙两车由同一起点同时出发,并沿同一路线(假定为直线)行驶.甲车、乙车的速度曲线分别为(如图2所示).那么对于图中给定的,下列判断中一定正确的是

A. 时刻,甲车在乙车前面                          

B. 时刻后,甲车在乙车后面

C. 时刻,两车的位置相同

D. 时刻后,乙车在甲车前面

答案

A

解析:由图像可知,曲线00轴所围成图形面积大,则时刻,甲车均在乙车前面,选A.

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