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 an object m6r, byw jea55he48hzpi x 0.qyoving along a straight lipjmct 1 m)zp j9,t)zvp3 z8md+ne is given by the velocity vs. time graph shown+t pzdmczj)389mjt1 p mp)v,z.
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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