这也就蒙那些数理盲而已


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送交者: pgss 于 2012-04-10, 17:30:42:

回答: 实用的物理 由 eddie 于 2012-04-10, 17:16:01:

是个stop sign。不是红灯

Stop sign requires three seconds of complete full stop. His graph didn't allow for that.
Also, mechanically, there should be a second or two when the gear shifts from stop to accelerating again.




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