Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion (id:

本题目来源于试卷: Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion，类别为 美国物理杯赛(Physics Bowl)

[单选题]
97.09: At a certain time, an o b 3yexnsp+g j 5d.llb, k*9b/ki,s2,-dhexgibject in free faxb 5 b-bcn94ncub1b((v *gj tgll has velocity 4.0 m/s in the upward direction. What is the approximate velocity bbx5-gu 4 n(nj(b1cbt9 gc*bvof the object one second later?

A. 14 m/s up
B. 10 m/s up
C. 4.0 m/s up
D. 6.0 m/s down
E. 10 m/s down


参考答案:  D


本题详细解析: 暂无

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