本题目来源于试卷: Simple Harmonic Motion: Parameters and Typical Relationship，类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.17: A mass moves +i iih8;,koatec 9y5qacco +x)5dutc1 mq6q- ny her91 3a dbecgs*rding to the graph of position as a function of time shown below.
d3+c)arm6x1 bg5quq- s yd19 te*cne h Which one of the following choices correctly represents the time instants or time interval for which the instantaneous velocity of the mass is considered always to be negative? Lettrepresent time.
A. $t = 0.0 s, t = 5.0 s, and t = 10.0 s$
B. $0.0 s < t < 2.5 s$
C. $ 2.5 s < t < 7.5 s$
D. $5.0 s < t < 10.0 s$
E. $2.5 s < t < 10.0 s$
参考答案: C
本题详细解析:
暂无
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