Physics Unit9: Static Equilibrium, Elasticity and Fracture (id: 55e8ab098)

本题目来源于试卷: Physics Unit9: Static Equilibrium, Elasticity and Fracture，类别为 国际高中通用物理

[单选题]
A cone balanced on iv6 ymhw ejui d) obpu7+o, h8z(9uyq;-ts smalljf,qb1ha2 fb ) end is in

A. stable equilibrium.
B. unstable equilibrium.
C. neutral equilibrium.
D. positive equilibrium.


参考答案:  B


本题详细解析: 暂无

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