五辆汽车,每隔一定的时间以相同的加速度从车站由静止开始沿平直

五辆汽车,每隔一定的时间以相同的加速度从车站由静止开始沿平直公路开出.当最后一辆汽车启动时,第一辆汽车已离站320m,这时第四辆汽车离站___m;若每隔5s发出一辆车,则汽车的加速度a=____m/s2.

答案


20;1.6
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