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匀变速直线运动

> 某物体做匀变速直线运动，其位移与时间的关系为x＝0.5t＋t 2(m)，则当物体的速度为3 m/s时，物体已运动的时间为 A．3 s B．2.5 s C．1.25 s D．6 s

问题：

发布时间：2024-09-07

某物体做匀变速直线运动，其位移与时间的关系为x＝0.5t＋t ²(m)，则当物体的速度为3 m/s时，物体已运动的时间为

A．3 s B．2.5 s C．1.25 s D．6 s

参考答案：

提问用户：Ce***P5K

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