试题与答案

关于平衡力,下列说法正确的是( ) A.物体受平衡力作用时,一定处于静止状态 B

题型:选择题

题目:

关于平衡力,下列说法正确的是(  )

A.物体受平衡力作用时,一定处于静止状态

B.物体受平衡力作用时,可能处于静止状态

C.只要大小相等,方向相反且在一条直线上的两个力,一定是平衡力

D.一对平衡力的三要素一定完全相同

答案:

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