问题描述:
从湛江飞往北京的3141航班的飞机,上午从湛江起飞,当天下午到达北京,全程行程2700km,此航班飞行时刻如下表所示,求全程的平均速度.湛江 | 长沙 | 北京 | ||
3141航班 | 到达时间 | -- | 13:30 | 16:00 |
起飞时间 | 11:30 | 14:00 | -- |
最佳答案:
由表可得:从湛江机场飞往北京机场的时间t=16:00-11:30=4.5h,全程的平均速度:v=
s |
t |
2700km |
4.5h |
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