锟竭讹拷锟斤拷锟斤拷牛锟紻锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷锟斤拷锟絚(di锟斤拷n)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟斤拷(f锟斤拷)锟斤拷(x锟斤拷)
2024-09-12 17:10:12锟絎(w锟斤拷ng)锟絡(lu锟斤拷)锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷1.牛锟紻锟斤拷一锟斤拷锟斤拷:
锟斤拷锟斤拷一锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟街勶拷锟斤拷直锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟斤拷锟給止?f锟斤拷n)锟紹(t锟斤拷i)锟斤拷直锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷锟斤拷變锟紷锟絅锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟斤拷止锟斤拷
锟斤拷锟斤拷(1)锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷锟絯锟斤拷一锟絅锟斤拷锟皆ｏ拷锟斤拷锟絯锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷要锟斤拷锟斤拷锟絊锟斤拷锟斤拷
锟斤拷锟斤拷(2)锟斤拷锟斤拷锟絝锟斤拷锟斤拷锟轿猴拷锟斤拷锟絯锟斤拷锟叫慣锟皆★拷
锟斤拷锟斤拷(3)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟角诧拷锟斤拷锟节碉拷锟斤拷牛锟紻锟斤拷一锟斤拷锟缴诧拷锟斤拷锟矫岋拷(sh锟斤拷)锟�(y锟斤拷n)直锟斤拷锟�(y锟斤拷n)锟紺锟斤拷锟斤拷锟角斤拷锟斤拷锟节达拷锟斤拷锟斤拷(sh锟斤拷)锟�(y锟斤拷n)锟紽(xi锟斤拷n)锟斤拷幕锟斤拷A(ch锟斤拷)之锟斤拷锟斤拷通锟絕思锟絊锟斤拷邏輯锟斤拷锟斤拷锟斤拷锟絣(f锟斤拷)锟紽(xi锟斤拷n)锟侥★拷锟斤拷锟斤拷锟絍锟斤拷锟剿傦拷锟叫撅拷锟斤拷锟巾問锟絵锟斤拷锟斤拷一锟絅锟铰凤拷锟斤拷:通锟絕锟絕锟斤拷锟斤拷锟斤拷膶锟�(sh锟斤拷)锟�(y锟斤拷n)锟紽(xi锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟剿碉拷邏輯思锟絊锟斤拷锟侥达拷锟斤拷锟紽(xi锟斤拷n)锟斤拷锟叫岋拷锟斤拷锟斤拷锟斤拷锟揭�(gu锟斤拷)锟斤拷锟斤拷
锟斤拷锟斤拷(4)牛锟紻锟斤拷一锟斤拷锟斤拷锟斤拷牛锟紻锟节讹拷锟斤拷锟缴的伙拷锟紸(ch锟斤拷)锟斤拷锟斤拷锟杰猴拷(ji锟斤拷n)锟轿碉拷锟絁(r锟斤拷n)锟斤拷锟斤拷锟斤拷牛锟紻锟节讹拷锟斤拷锟缴诧拷锟斤拷锟斤拷锟斤拷锟絩(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷牛锟紻锟斤拷一锟斤拷锟缴讹拷锟皆地給锟斤拷锟斤拷锟斤拷锟絚锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟絇(gu锟斤拷n)系锟斤拷牛锟紻锟节讹拷锟斤拷锟缴讹拷锟斤拷锟截給锟斤拷锟斤拷锟絚锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟絇(gu锟斤拷n)系锟斤拷
锟斤拷锟斤拷2.锟絋锟斤拷:
锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟街勶拷锟斤拷直锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟斤拷锟給止?f锟斤拷n)锟紹(t锟斤拷i)锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷
锟斤拷锟斤拷(1)锟絋锟斤拷锟斤拷锟斤拷锟絯锟侥癸拷锟叫岋拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟絯锟斤拷锟叫慣锟斤拷锟斤拷锟絚锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟斤拷r锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷B(t锟斤拷i)锟給锟絇(gu锟斤拷n)锟斤拷锟斤拷锟斤拷f锟斤拷锟剿傦拷只锟斤拷"锟斤拷锟斤拷"锟絋锟皆讹拷锟斤拷锟斤拷"锟剿凤拷"锟絋锟斤拷锟斤拷(2)锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟絯锟絋锟皆达拷小锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟�3.牛锟紻锟节讹拷锟斤拷锟斤拷:
锟斤拷锟斤拷锟斤拷锟絯锟侥硷拷锟劫度革拷锟斤拷锟杰碉拷锟斤拷锟斤拷锟侥猴拷锟斤拷锟斤拷锟斤拷锟饺ｏ拷锟斤拷锟斤拷锟絯锟斤拷锟絴(zh锟斤拷)锟斤拷锟缴凤拷锟斤拷锟斤拷锟斤拷锟劫度的凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷姆锟斤拷锟斤拷锟酵�锟斤拷锟斤拷锟絖(d锟斤拷)式F锟斤拷=ma
锟斤拷锟斤拷(1)牛锟紻锟节讹拷锟斤拷锟缴讹拷锟斤拷锟斤拷示锟斤拷锟斤拷锟絚锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟絇(gu锟斤拷n)系锟斤拷锟斤拷知锟斤拷锟斤拷锟斤拷锟斤拷锟缴革拷锟斤拷(j锟斤拷)牛锟紻锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)規(gu锟斤拷)锟斤拷;锟斤拷锟絕锟斤拷锟斤拷知锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟缴革拷锟斤拷(j锟斤拷)牛锟紻锟节讹拷锟斤拷锟斤拷锟叫撅拷锟斤拷锟斤拷锟斤拷锟斤拷r锟斤拷锟斤拷锟絆(sh锟斤拷)計(j锟斤拷)锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟结供锟斤拷锟斤拷論锟斤拷锟紸(ch锟斤拷)锟斤拷
锟斤拷锟斤拷(2)锟斤拷(du锟斤拷)牛锟紻锟节讹拷锟斤拷锟缴的旓拷(sh锟斤拷)锟絎(xu锟斤拷)锟斤拷锟絖(d锟斤拷)式F锟斤拷=ma锟斤拷F(xi锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷ma锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷效锟斤拷锟斤拷锟截別要注锟解不锟杰帮拷ma锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷(3)牛锟紻锟节讹拷锟斤拷锟缴斤拷示锟斤拷锟斤拷锟斤拷锟斤拷瞬锟絞效锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟较碉拷锟斤拷锟絚锟斤拷锟斤拷效锟斤拷锟斤拷瞬锟絩(sh锟斤拷)锟斤拷(du锟斤拷)锟斤拷(y锟斤拷ng)锟絇(gu锟斤拷n)系锟斤拷锟斤拷變锟斤拷锟劫度撅拷變锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟劫度就烇拷锟斤拷锟斤拷注锟斤拷锟斤拷锟斤拷瞬锟絞效锟斤拷锟角硷拷锟劫度讹拷锟斤拷锟斤拷锟劫讹拷锟斤拷
锟斤拷锟斤拷(4)牛锟紻锟节讹拷锟斤拷锟斤拷F锟斤拷=ma锟斤拷F(xi锟斤拷n)锟斤拷锟斤拷矢锟斤拷锟斤拷ma也锟斤拷矢锟斤拷锟斤拷锟斤拷ma锟絚F锟较的凤拷锟斤拷锟斤拷一锟铰碉拷锟斤拷F锟较匡拷锟斤拷锟組(j锟斤拷n)锟叫合筹拷锟絚锟街斤拷锟斤拷ma也锟斤拷锟斤拷锟組(j锟斤拷n)锟叫合筹拷锟絚锟街斤拷锟斤拷
锟斤拷锟斤拷4.锟斤拷牛锟紻锟斤拷锟斤拷锟斤拷锟斤拷:
锟斤拷锟斤拷锟缴傦拷(g锟斤拷)锟斤拷锟絯之锟絞锟斤拷锟斤拷锟斤拷锟斤拷锟絚锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角达拷小锟斤拷龋锟斤拷锟斤拷锟斤拷喾�锟斤拷锟斤拷锟斤拷锟斤拷同一直锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷(1)牛锟紻锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟斤拷指锟斤拷锟剿冿拷锟斤拷锟絯之锟絞锟斤拷锟斤拷锟斤拷锟斤拷锟洁互锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷浅蓪锟�(du锟斤拷)锟斤拷锟紽(xi锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同锟絩(sh锟斤拷)锟絘(ch锟斤拷n)锟斤拷锟斤拷同锟絩(sh锟斤拷)锟斤拷失锟斤拷
锟斤拷锟斤拷(2)锟斤拷锟斤拷锟斤拷锟酵凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同锟絅锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷(3)锟斤拷锟斤拷锟斤拷锟酵凤拷锟斤拷锟斤拷锟斤拷锟街別锟斤拷锟斤拷锟节兩傦拷(g锟斤拷)锟斤拷同锟斤拷锟斤拷锟絯锟较ｏ拷锟斤拷锟絘(ch锟斤拷n)锟斤拷锟斤拷效锟斤拷锟斤拷锟斤拷锟缴疊锟斤拷锟斤拷
锟斤拷锟斤拷5.牛锟紻锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷锟缴碉拷锟絤锟矫凤拷锟斤拷:
锟斤拷锟斤拷锟斤拷锟絕锟斤拷锟劫碉拷锟斤拷锟絯锟斤拷锟节慣锟斤拷系锟斤拷锟斤拷
锟斤拷锟斤拷6.锟斤拷锟截猴拷失锟斤拷
锟斤拷锟斤拷(1)锟斤拷锟斤拷:锟斤拷锟絯锟斤拷锟斤拷锟较的硷拷锟劫度稱锟斤拷锟絯處锟节筹拷锟斤拷锟斤拷處锟节筹拷锟截碉拷锟斤拷锟絯锟斤拷(du锟斤拷)支锟斤拷锟斤拷膲锟斤拷锟紽N(锟斤拷?q锟斤拷)锟斤拷覓锟斤拷锟斤拷锟斤拷锟�?锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷mg锟斤拷锟斤拷FN=mg+ma锟斤拷(2)失锟斤拷:锟斤拷锟絯锟斤拷锟斤拷锟铰的硷拷锟劫度稱锟斤拷锟絯處锟斤拷失锟斤拷锟斤拷處锟斤拷失锟截碉拷锟斤拷锟絯锟斤拷(du锟斤拷)支锟斤拷锟斤拷膲锟斤拷锟紽N(锟斤拷?q锟斤拷)锟斤拷覓锟斤拷锟斤拷锟斤拷锟�?小锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷mg锟斤拷锟斤拷FN=mg-ma锟斤拷锟斤拷(d锟斤拷ng)a=g锟絩(sh锟斤拷)FN=0锟斤拷锟斤拷锟絯處锟斤拷锟斤拷全失锟斤拷锟斤拷(3)锟斤拷(du锟斤拷)锟斤拷锟截猴拷失锟截碉拷锟斤拷锟解應(y锟斤拷ng)锟斤拷(d锟斤拷ng)注锟斤拷膯锟斤拷}
锟斤拷锟�锟斤拷俨锟斤拷锟斤拷锟斤拷w處锟斤拷失锟截狅拷B(t锟斤拷i)還锟角筹拷锟截狅拷B(t锟斤拷i)锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絔锟叫革拷變锟斤拷只锟斤拷锟斤拷锟絯锟斤拷(du锟斤拷)支锟斤拷锟斤拷膲锟斤拷锟�(锟斤拷?q锟斤拷)锟斤拷覓锟斤拷锟斤拷锟斤拷锟�?锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节筹拷锟截伙拷失锟截現(xi锟斤拷n)锟斤拷锟絚锟斤拷锟絯锟斤拷锟劫度無锟絇(gu锟斤拷n)锟斤拷只锟絈锟斤拷锟节硷拷锟劫度的凤拷锟斤拷锟斤拷"锟斤拷锟斤拷锟斤拷锟斤拷"锟斤拷"锟絧锟斤拷锟铰斤拷"锟斤拷锟角筹拷锟斤拷;"锟斤拷锟斤拷锟铰斤拷"锟斤拷"锟絧锟斤拷锟斤拷锟斤拷"锟斤拷锟斤拷失锟斤拷锟斤拷
锟斤拷锟�锟斤拷锟斤拷锟斤拷锟饺э拷氐臓锟紹(t锟斤拷i)锟斤拷锟斤拷平锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟絘(ch锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟紽(xi锟斤拷n)锟襟都曪拷(hu锟斤拷)锟斤拷全锟斤拷失锟斤拷锟斤拷螖[停锟絒锟斤拷锟斤拷平失效锟斤拷锟斤拷锟斤拷水锟叫碉拷锟斤拷锟絯锟斤拷锟斤拷锟杰革拷锟斤拷锟斤拷液锟絯锟斤拷锟斤拷锟劫產(ch锟斤拷n)锟斤拷锟斤拷锟斤拷(qi锟斤拷ng)锟斤拷锟斤拷
锟斤拷锟斤拷6锟斤拷處锟斤拷锟紹锟斤拷锟絵锟斤拷锟絵----通锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷俣锟�锟斤拷锟矫革拷锟絰锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷
锟竭讹拷锟斤拷锟斤拷锟�(f锟斤拷)锟斤拷(x锟斤拷)锟斤拷锟斤拷锟絉锟斤拷
锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟竭★拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷
锟竭匡拷锟絩(sh锟斤拷)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(di锟斤拷n)
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(h锟斤拷o)
