本题目来源于试卷: Overweight and underweight，类别为 美国物理杯赛(Physics Bowl)
[单选题]
97.30 : A string with masses of 1.5 kg an ml;zoy:6zcdtf2p+-hr19 /m r yj md :fww;ac)aam f z )6y h+d39a(zxld 3.0 kg on its ends is hung over a fricti )aza3 (xa 6z mw)d+lywfac;h 9onless, massless pulley as shown to the right. What is the approximate magnitude of the acceleration of the masses? 
A. $1.5\; m/s^{2}$
B. $3.0\;m/s^{2}$ .
C. $3.3\; m/s^{2}$ .
D. $6.7\; m/s^{2}$
E. $10\; m/s^{2}$ .
参考答案: C
本题详细解析:
暂无
| 
