Overweight and underweight (id: 7f217f6b6)

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 and 3.0 kg on its ends is hung ov))wmb dv3 1h: by/xvoqenp qdtly6ene6ct) )7lh+u 4ck t707kgr a frictionless, massless pulley as shown to the right. What is the approximate magnitude )+77epund 0 qg k kl 6lt6)7tch4nyetcof 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

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