本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 通用国际物理
[单选题]
Under what condition is average velocity equal t lf)f1bggw)).45qbl u da u:fao the averafgfvk -w)2 vun0we z/a0z4s: mqfds43ge of the object's initavzf q)ns0/zf v md-04f4:eu2 kgwsw3ial and final velocity?
A. The acceleration must be constantly changing.
B. The acceleration must be constant.
C. This can only occur if there is no acceleration.
D. This is impossible.
参考答案: B
本题详细解析:
暂无
| 
