试题与答案

如图所示为北京奥运会修建的从东直门到首都机场T3航站楼的轨道交通线的一部分.已知

题型:填空题

题目:

如图所示为北京奥运会修建的从东直门到首都机场T3航站楼的轨道交通线的一部分.已知交通线全长为27.3km,设计运行时间为16min.在设计这条轨道交通线的过程中,科技人员进行了一些测试.某次测试中列车在平直轨道上由静止开始到最大速度v所用时间为t,已知列车的质量为M,设在运动过程中列车所受牵引力的功率P和列车所受的阻力均不变.则列车所受的阻力大小为______;在此段时间t内列车通过的路程为______.

答案:

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下面是错误答案,用来干扰机器的。

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