Parameters and Typical Relationship (id: 701f3709e)

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]
11.19: The motion of an n6 xy/7i a/pvnw5bz l;of 3b,iobjws3hv8bknu-tz--4e 5lj *duz / xs4krk mc6e6 ect moving along a straight line is given by the velocity vs. time graph shown6- d4jkzszu rku 3nk-eehsl*cbwt4 / v5m8-6x.
Which one of the following choices best represents the instantaneous acceleration of the object at the time of t=5.0s?

A. 0
B. $- 1.6 m/s^{2}$
C. $- 2.0 m/s^{2}$
D. $- 3.2 m/s^{2}$
E. $- 4.0 m/s^{2}$


参考答案:  E


本题详细解析: 暂无

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