本题目来源于试卷: Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.17: A toy car initially moves to the right at 60.0 cmt8sklss84uoj+r z 8s g u8wj65/s. Fis ibyg8blvf (0kxpb6*rz7, d,*hf 1xl4bxj 3 sve seconds later, the car is moving at 40.0 cm/s to the left. The total displacement of the car during this time is 10.0 cm to the left of where it startedbd jiz8vby *6f k 7lb3 xlg1hb,s*pxf0(r ,xs4. Which one of the following choices best represents the magnitude of the average acceleration of the car during the five second motion?
A. $20.0\;cm/s^2$
B. $4.00\;cm/s^2$
C. $2.00\;cm/s^2$
D. $0.80\;cm/s^2$
E. $0.40\;cm/s^2$
参考答案: A
本题详细解析:
暂无
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