本题目来源于试卷: Impulse and momentum，类别为 美国物理杯赛(Physics Bowl)
[单选题]
17.21: The change in lif*p55 v)r x0p4. 4rcnebv2xx4x mdwtnnear momentum of an object is al.afj.+k nuo y*ways in the same directio .uayknjo+*f.n as the
A. velocity of the object.
B. displacement of the object.
C. average speed of the object.
D. average velocity of the object.
E. average acceleration of the object.
参考答案: E
本题详细解析:
暂无
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