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]
02.02: The graph represents the l7y t fr)xf;u9y rrzu.zq 18d; relationship bet e9 mc g094raipe/mk/iween distance and time for an object t pec0k9/ e irig/mam 49hat is moving along a straight line. Between what times did the object have a non-zero acceleration?
A. 0 s only
B. 0 s to 5 s
C. 5 s to 8 s
D. 0 s to 8 s
E. the object was not accelerating at any time
参考答案: C
本题详细解析:
暂无
|