An ambulance travels back and forth, at a constant speed,along a road of length L.At a certain moment in time,an accident occurs at a point uniformly distributed on the road(i.e. the distance from one of the fixed ends of the road is uniformly distributed over the length of the road),Assume that the ambulance's location at the moment of the accident is also uniformly distributed and is independent of the position of the accident.(a)What is the distribution of the distance between the ambulance and the accident.(b)What if the ambulance did not travel at a constant speed but traveled at different speeds when at different locations? 请各位大大帮忙解答该怎麽做,多谢 -- 夫兵者不祥之器物或恶之故有道者不处君子居则贵左用兵则贵右兵者不祥之器非君子 之器不得已而用之恬淡为上胜而不美而美之者是乐杀人夫乐杀人者则不可得志於天下 矣吉事尚左凶事尚右偏将军居左上将军居右言以丧礼处之杀人之众以哀悲泣之战胜以 丧礼处之道常无名朴虽小天下莫能臣侯王若能守之万物将自宾天地相合以降甘露民莫 之令而自均始制有名名亦既有夫亦将知止知 c-68-33-16-11.hsd1.md.comcast.net海