287995852 发表于 2011-1-7 10:07

求高手~~~求见解~~~

Warning System for Artillery AttackNov. 23, 2010, North Korea fired dozens of artillery shells at the South Korean island of Yeonpyeong, killing two soldiers and two civilians and setting houses ablaze in the worst attack on its neighbour since 1953.Yeonpyeong Island is located only 7 miles apart from North Korean coast. Please study the possibility of artillery shells’ attack warning and the location of firing position.
应该用什么模型做啊= =

ym4066 发表于 2011-1-8 19:51

    你用物理方法试试！！！

ym4066 发表于 2011-1-8 19:53

  .......  你用物理方法试试！！查一下一般火炮的推力！！

mutou1991 发表于 2011-1-8 23:44

{:3_41:}{:3_41:}不懂啊
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