本题目来源于试卷: Physics Unit7: Linear Momentum,类别为 国际高中通用物理
[单选题]
A 1500-kg car traveling at 90.0 k 1k dm+a u2bhkm/p v/(hu1vzv0m/h v7hr c mjidf:13,ubi ,east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars s i,jr 73,ucdi1bv fmh:tick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision? 
A. 8.33 m/s
B. 13.9 m/s
C. 17.4 m/s
D. 21.7 m/s
参考答案: B
本题详细解析:
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