本题目来源于试卷: Physics Unit3: Kiematics Motion in Two Dimension & Vectors，类别为 通用国际物理
[单选题]
Three forces, each having a magnitude of 30 N, h( evq:pbg b9z5dn,v1erb e8; pre ho9d w:)0ghull on an object in directions that h9)0dr e :oghware $120^{\circ}$ apart from each other. Make a statement concerning the resultant force.
A. The resultant force is zero.
B. The resultant force is greater than 30 N.
C. The resultant force is equal to 30 N.
D. The resultant force is less than 30 N.
参考答案: A
本题详细解析:
暂无
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