Parameters and Typical Relationship (id: 7da68cc45)

本题目来源于试卷: Parameters and Typical Relationship，类别为 美国物理杯赛(Physics Bowl)

[单选题]
11.18: The motion of cnc*gbjd0 / f fnf5-)qamhnayl 83d0 5kn object moving along a straight line is given by the velocity vs. time graph shown. hn03am5ldy8k
Which one of the following choices best represents the average acceleration of the object during the time interval from t=4.0 sto t=9.0 s?

A. $0.80 m/s^{2}$
B. 0
C. $-0.80 m/s^{2}$
D. $-1.60 m/s^{2}$
E. $-3.2 m/s^{2}$


参考答案:  D


本题详细解析: 暂无

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