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]
04.38: A small point-like object is pulle l+lag lciw+(/d do jm s5,mic8u8r wnwards by gravity (down the plane of the page) but is constrained to exactly follow each of the frictionless pathways shown. Rank these three paths from shortest to longest in terms of the amount of time (T) necessary for the object to be released from rest at point A and travel to point B. Assume that in changin r m8c,j8 u5msig direction that there is no loss of energy and that it takes negligible time.
A. T3 < T1 < T2
B. T3 = T2 < T1
C. T3 < T2 < T1
D. T1 < T2 = T3
E. T1 < T3 < T2
参考答案: E
本题详细解析:
暂无
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