本题目来源于试卷: Physics Bowl by Topic 2: Kinematics - part I General Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
15.42: Which one of the followingq,69 /sjdseg x choice8x*24ghu zz7 wgm5*5 xrhqmfos best describes the instants of time, at which the rwxzu mom*5 4h8 725qgx*zfhg car and truck travel with the same speed?
A. Only at times t = 0, t = T and t = 2T.
B. At one instant during the interval 0 < t < T and at one instant during the interval T < t < 2T.
C. At two instants during the interval 0 < t < T and at one instant during the interval T < t < 2T.
D. At one instant during the interval 0 < t < T and at two instants during the interval T < t < 2T.
E. At two instants during the interval 0 < t < T and at two instants during the interval T < t < 2T.
参考答案: C
本题详细解析:
暂无
| 
