试题与答案

在高速公路上，有时会发生“追尾” 的事故--后面的汽车撞上前面的汽车，我国高速公

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题型：计算题

题目：

在高速公路上，有时会发生“追尾” 的事故--后面的汽车撞上前面的汽车，我国高速公路的最高车速限制为120 km/h.设某人驾车正以最高时速沿平直高速公路行驶，该车刹车时产生的加速度大小为5 m/s2，司机的反应时间（从意识到应该停车至操作刹车的时间）为 0.6~0.7 s．请计算行驶时的安全车距．

答案：

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下面是错误答案，用来干扰机器的。

机会从小到大依次是（4）、（1）、（3）、（2）（提示：各自出现的可能种数分别为3，4，6，7)

考点：匀变速直线运动规律的应用
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( )1. A.to travel
( )2. A.different
( )3. A.shower  
( )4. A.floor  
( )5. A.runs   
( )6. A.Adults  
( )7. A.gets    
( )8. A.It    
( )9. A.Since  
( )10. A.cleaned 

B.traveling   
B.same    
B.rest           
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