本题目来源于试卷: Rotational Equilibrium，类别为 美国物理杯赛(Physics Bowl)
[单选题]
10.16: Amass M1=40 kg is t zg;exq. oeic:.pun8 m4xw6:at the very edge of gn 7e c+b)lw3qrb;79hl jc9cca 6.0m long plank which is pivoted about its center of mass located directly at the center of its length. How far from the center of the plank (x) should the mass kg M2=80 kg be placed so that the plank remains in static equilibrium in a horizonta 7rbq)wbcncgh+73 9ll c9 e;cjl position?
A. 0.05m
B. 1.33m
C. 1.50m
D. 2.00m
E. 3.00m
参考答案: C
本题详细解析:
暂无
| 
