力F=12ti (N)作用在质量m=2kg的物体上,使物体由原点从静止开始运动,则它在3s末的速度为( ) -题库考试答案搜索网

力F=12ti (N)作用在质量m=2kg的物体上,使物体由原点从静止开始运动,则它在3s末的速度为( )

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2021-09-02 13:27

A、；
B、；
C、；
D、.

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正确答案

B

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标签：文鼎教育乐山师范学院大学物理

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