本题目来源于试卷: gc textbook chapter 2 Kinematics in One Dimension，类别为 IB物理学
[问答题]
You travel from point A to point B in a 2b:sx7,)mk: wn zavtbajc82 b car moving,3t cmpqg 5/eu fg/k*ydlm57g at a constant speed of Then you travel the same distance froml5 m,u/75mt g/*ykgf dgcqep3 point B to another point C, moving at a constant speed of 90km/h . Is your average speed for the entire trip from A to C 80km/h ? Explain why or why not.
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