锟斤拷锟斤拷锟角忥拷锟斤拷锟斤拷撞锟絕锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷變锟斤拷還锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷锟絣(f锟斤拷)聲锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟絩锟斤拷锟斤拷锟斤拷撞锟絕锟斤拷锟叫曪拷锟叫勶拷锟杰損失锟斤拷锟斤拷锟斤拷锟杰诧拷锟截猴拷锟斤拷锟斤拷么锟斤拷锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷式锟斤拷锟斤拷些锟斤拷锟斤拷

锟斤拷锟斤拷1什么锟斤拷锟斤拷全锟角忥拷锟斤拷锟斤拷撞

锟斤拷锟斤拷锟角忥拷锟斤拷锟斤拷撞锟絕锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷變锟斤拷還锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷锟絣(f锟斤拷)聲锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟絩锟斤拷锟斤拷锟斤拷撞锟絕锟斤拷锟叫曪拷锟叫勶拷锟杰損失锟斤拷锟斤拷锟斤拷锟杰诧拷锟截猴拷锟斤拷锟斤拷锟斤拷锟截猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷w锟斤拷锟絰锟斤拷锟紷锟斤拷锟阶诧拷Q锟斤拷菑锟斤拷锟斤拷锟阶�锟斤拷锟斤拷撞锟斤拷锟斤拷锟絯锟結(ji锟斤拷)锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟杰損失锟斤拷锟�锟斤拷锟紷锟絅锟斤拷撞锟斤拷锟斤拷锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷

锟斤拷锟斤拷锟角忥拷锟斤拷锟斤拷撞锟斤拷锟絚锟斤拷锟斤拷撞锟斤拷锟斤拷全锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷窦埢锟揭伙拷锟斤拷突遥锟斤拷锟截猴拷锟斤拷全粘锟节碉拷锟斤拷锟斤拷锟紷锟絅锟斤拷撞锟絫锟斤拷锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷锟斤拷然锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷撞锟斤拷锟紿锟斤拷锟斤拷锟节非忥拷锟斤拷锟斤拷撞锟斤拷

锟斤拷锟斤拷2锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷式锟斤拷什么

锟斤拷锟斤拷锟斤拷撞锟絕锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷變锟斤拷還锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷锟絣(f锟斤拷)聲锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟絩锟斤拷锟斤拷锟斤拷撞锟絕锟斤拷锟叫曪拷锟叫勶拷锟杰損失锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紺械锟杰讹拷锟斤拷锟截猴拷锟斤拷锟斤拷锟斤拷锟截猴拷锟紷锟斤拷锟阶诧拷Q锟斤拷菑锟斤拷锟斤拷锟阶�锟斤拷锟斤拷式: m1v1+m2v2=m1v1'+m2v2'

锟斤拷锟斤拷锟斤拷撞锟斤拷锟斤拷锟絯锟結(ji锟斤拷)锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟劫讹拷锟斤拷锟�锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟絯锟絩锟斤拷锟杰損失锟斤拷锟斤拷@锟絅锟斤拷撞锟斤拷锟斤拷锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷锟絕锟教機械锟斤拷也锟斤拷锟截猴拷锟斤拷該系锟統(t锟斤拷ng)锟侥勶拷锟斤拷锟截恒。锟斤拷式锟斤拷 m1v1+m2v2=(m1+m2)V

锟斤拷锟斤拷3锟斤拷全锟角忥拷锟斤拷锟斤拷撞锟斤拷式锟斤拷么锟狡岋拷

锟斤拷锟斤拷m1v1+m2v2=m1v1'+m2v2' 一式

锟斤拷锟斤拷1/2m1v1^2+1/2m2v2^2=1/2m1v1'^2+1/2m2v2'^2 锟斤拷式

锟斤拷锟斤拷锟斤拷一式锟斤拷m1(v1-v1'锟斤拷=m2锟斤拷v2'-v2锟斤拷

锟斤拷锟斤拷锟缴讹拷式锟斤拷m1(v1+v1')锟斤拷v1-v1'锟斤拷=m2锟斤拷v2'+v2锟斤拷锟斤拷v2'-v2锟斤拷

锟斤拷锟斤拷锟斤拷鹊锟絭1+v1'=v2+v2'

锟斤拷锟斤拷聯(li锟斤拷n)锟斤拷

锟斤拷锟斤拷v1'=[(m1-m2)v1+2m2v2]/锟斤拷m1+m2锟斤拷

锟斤拷锟斤拷v2'=[(m2-m1)v2+2m1v1]/锟斤拷m1+m2锟斤拷

锟斤拷锟斤拷锟角忥拷锟斤拷锟斤拷撞只锟杰革拷锟斤拷(j锟斤拷)锟斤拷锟斤拷锟叫筹拷 锟斤拷锟斤拷锟截猴拷式 m1V1+m2V2=m1V1'+m2V2'

锟斤拷锟斤拷锟斤拷锟斤拷]锟斤拷锟斤拷锟斤拷锟絣锟斤拷锟斤拷锟襟不筹拷锟斤拷 V1' 锟斤拷V2'锟斤拷

锟斤拷锟斤拷锟斤拷锟阶诧拷锟揭伙拷锟斤拷泄锟酵�锟斤拷锟劫讹拷 锟斤拷 锟角匡拷锟斤拷锟斤拷锟�

锟斤拷锟斤拷m1V1+m2V2= (m1+m2)V V=(m1V1+m2V2) /(m1+m2)

锟斤拷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷锟斤拷知锟絉锟絚锟絉锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟絓锟接癸拷式锟斤拷規(gu锟斤拷)锟缴匡拷锟結(ji锟斤拷)

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟绞傦拷锟斤拷志愿锟斤拷锟斤拷取锟街旓拷(sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號