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]
15.17: An object starts at the 5btsg he( t125mp8a 3md loo3s origin and i +.ma rrjtd9 jtlc(d6(ts velocity along a line vs. time is graphed. Which one of the following choices best l +.m 9d(ct6jtrja( dr gives the proper interval(s) of time for which the object is moving away from the origin?

A. Only for times 0 s < t< 3 s
B. Only for times 0 s < t < 5 s
C. Only for times 3 s < t < 5 s
D. Only for times 0 s< t < 7 s
E. For times 0 s < t < 3 s and 5 s < t < 9 s
参考答案: D
本题详细解析:
暂无
|