本题目来源于试卷: Typical Forces,类别为 美国物理杯赛(Physics Bowl)
[单选题]
16.05: In the figure shown, the mass m = 6.0 k。and the lvy6qc j 0c;ry9c4 kem+4o+( 0azac jp mass M = 1 b3eis 5aq(ti+7q*cij 4.0 k。are stationary. The mass M rests on the floor. Which j7eic(+3*q tis a 5bqi one of the following choices represents the tension in the string connecting the masses?

A. 40N
B. 60N
C. 80N
D. 140N
E. 200N
参考答案: B
本题详细解析:
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