试题与答案

(12分)甲、乙两车,从同一处,同时开始作同向直线运动。已知甲车以14m/s的速

题型:计算题

题目:

(12分)甲、乙两车,从同一处,同时开始作同向直线运动。已知甲车以14m/s的速度作匀速直线运动,乙车从静止开始作匀加速运动,加速度为2m/s2。试分析:

(1)经过多长时间,乙车追上甲车?此时乙车的速度多大?

(2)经过多长时间,乙车落后于甲车的距离最大?落后的最大距离是多少?

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B, C解析:考点: 现代税收原则

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