本题目来源于试卷: 2011 美国F=ma物理竞赛 F=ma physics competition，类别为 美国物理杯赛(Physics Bowl)
[单选题]
A spring has an equilibriux*i-acrd ue3,:da o/,cdx pm-, cg8 tzm length of 2.tsivd p0 +3zu20 meters and a spring constant of 10 newtons/meter. Alice is pulling on one end of the spring with a force of 3.0 newtons. Bob is pulling on the opposite end of the spring with a for +us pd3vi2z0tce of 3.0 newtons, in the opposite direction. What is the resulting length of the spring?
A. $1.7 \mathrm{~m}$
B. $2.0 \mathrm{~m}$
C. $2.3 \mathrm{~m}$
D. $2.6 \mathrm{~m}$
E. $8.0 \mathrm{~m}$
参考答案: A
本题详细解析:
暂无
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