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  1. light changes to green before the minibus arrives at the traffic light. when the minibus passes the traffic light, it speeds up at a rate of 2 ms-2 and, at the same time, the sports car speeds upat 5m/s from rest. minibus speed up 2ms-2 定sports car?? sports car...

  2. deducted = 減 姐係第2題既答案唔計gdp 因為gdp 同gnp 既分別 resident 係外國earn既錢都計gnp 不過唔計gdp so 係gdp 裹面要減 而第1題 foreign investor 既經濟中心唔係hk 同唔係resident so 唔計hk gdp 希望我解得岩la