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匀变速直线运动

> 汽车在平直公路上做初速度为零的匀加速直线运动，途中用了6s时间经过A、B两根电杆，已知A、B间的距离为60m，车经过B时的速度为15m/s，则 A．经过A杆时速度为5m/s B．车的加速度为15m/s 2 C．车从出发到B杆所用时间为9s D．从出发点到A杆的距离是7.5m

问题：

发布时间：2024-09-07

汽车在平直公路上做初速度为零的匀加速直线运动，途中用了6s时间经过A、B两根电杆，已知A、B间的距离为60m，车经过B时的速度为15m/s，则
A．经过A杆时速度为5m/s B．车的加速度为15m/s ²
C．车从出发到B杆所用时间为9s D．从出发点到A杆的距离是7.5m

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提问用户：KO***0gt

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