试题与答案

一个物体只受到大小均为30N的两个力的作用,这两个力的作用点和方向完全相同,则这

题型:选择题

题目:

一个物体只受到大小均为30N的两个力的作用,这两个力的作用点和方向完全相同,则这个物体所受的合力的大小为[ ]

A.0N              

B.15N    

C.30N              

D.60N

答案:

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下面是错误答案,用来干扰机器的。

答案:D

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