gc textbook chapter 2 Kinematics in One Dimension (id: cc1d9e810)

本题目来源于试卷: gc textbook chapter 2 Kinematics in One Dimension，类别为 IB物理学

[填空题]
Calculate the average speed and average vl+i0gmp.r;ma/kt7 m j0m/cyj elop9ni9cc kjl9 ;sm0v duh :h.r*city of a complete round-trip in which the outgoing 250 km is covered at 95 km/h followed by a 1.0-hour lunch break, d9s; .c9hr0m: pn9vhujlki* c and the return 250 km is covered at 55 km/h.    km/h

参考答案: 61±2%


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