本题目来源于试卷: Physics Bowl by Topic 2: Kinematics - part I General Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
13.18: Which one of the folb 3 t.p0// mcikzx:ikelowieloz2q v5 +s,yng choices correctly identifies all of the listed situations for wzy+v5 s 2,leoqhich there is a non-zero acceleration?
Situation I : A point object moves in a straight line with increasing speed.
Situation II : A point object moves in a circular path with constant speed.
Situation III: A point objects moves in a circular path with decreasing speed.
A. Situations I, II, & III
B. Only Situations I & III
C. Only Situations II & III
D. Only Situation III
E. Only Situation I
参考答案: A
本题详细解析:
暂无
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