本题目来源于试卷: Space Time & Motion A.1 Kinematics，类别为 IB物理学
[单选题]
A body is moving in a straight line with a constant acceleration of a. Its speed increases from u to v in a time of t. Consider the folloing expressions:
I. $vt+\frac{(v-u)t}{2}$
II. $vt-\frac{1}{2}at^2$
III. $\frac{(v-u)t}{2}$
Which expression(s) can be used to determine the displacement of the body during the time interval t?
A. $I$ only
B. $II$ only
C. $I$ and $II$ only
D. $II$, and $III$ only
参考答案: C
本题详细解析:
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