本题目来源于试卷: Typical Forces,类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.04: Three equal masses are oe m ;;,f frf8+svu0jp suspended from : )tps3uibn2ybq ii4; a classroom ceiling by a series of strings as quit2n3;pi 4)byi s:bshown in the figure. Which string has the greatest tension?

A. Only String A
B. Only String B
C. Only String C
D. Strings A, B, and C have the same non-zero tension.
E. Strings A, B, and C all have no tension.
参考答案: A
本题详细解析:
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