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> 做匀变速直线运动的物体的位移与时间的关系式是： S= t 2 +t2（米），则经过多长时间，它的速度为3米/秒？（　　） A．1.25秒 B．2.5秒 C．3秒 D．6秒

问题：

发布时间：2024-09-07

做匀变速直线运动的物体的位移与时间的关系式是： S=

t

2

+t2（米），则经过多长时间，它的速度为3米/秒？（　　）

A．1.25秒 B．2.5秒 C．3秒 D．6秒

参考答案：

提问用户：Bb***GyH

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做匀变速直线运动的物体的位移与时间的关系式是： S= t 2 +t2（米），则经过多长时间，它的速度为3米/秒？（ ） A．1.25秒 B．2.5秒 C．3秒 D．6秒

可能感兴趣的题目：

做匀变速直线运动的物体的位移与时间的关系式是： S=

t

2

+t2（米），则经过多长时间，它的速度为3米/秒？（　　）

A．1.25秒 B．2.5秒 C．3秒 D．6秒