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楂樹竴鐗╃悊
涔犻璇撅細
绔栫洿闈㈠唴鐨勫彉閫熷渾鍛ㄨ繍鍔ㄥ強涓寸晫鐘舵�?/p>
锛?/p>
2014-3-12
锛?/p>
銆愬涔犵洰鏍囥�?/p>
瀵圭珫鐩撮潰鍐呭彉閫熷渾鍛ㄨ繍鍔ㄨ兘姝ｇ‘鍒嗘瀽鍙楀姏锛屾槑纭叾涓寸晫鐘舵�?/p>
銆愬彂灞曠洰鏍囥�?/p>
閫氳繃瀹炰緥浣撲細鐗╃悊鍦ㄧ敓娲讳腑鐨勫簲鐢紝鍩瑰吇瀛︾敓瀛︿範鐗╃悊鐨勫叴瓒?/p>
銆愰噸銆侀毦鐐广�?/p>
鏍规嵁鐗涢】绗簩瀹氬緥鍒╃敤鍚戝績鍔涘叕寮忚В鍐冲疄闄呴棶棰?/p>
銆愬涔犺繃绋嬨�?/p>
瀵逛簬鐗╀綋鍦ㄧ珫鐩村钩闈㈠唴鍋氬彉閫熷渾鍛ㄨ繍鍔ㄧ殑闂锛屼腑瀛︾墿鐞嗕腑鍙爺绌剁墿浣撻�氳繃鏈�楂樼偣鍜屾渶浣庣偣鐨?/p>
鎯呭喌锛屽苟涓旂粡甯稿嚭鐜颁复鐣岀姸鎬侊紝涓嬮潰瀵硅繖绫婚棶棰樿繘琛屽垎鏋愶細
涓�銆佹病鏈夌墿浣撴敮鎾戠殑灏忕悆
1
銆佸鍥炬墍绀猴紝娌℃湁鐗╀綋鏀拺鐨勫皬鐞冿紝鍦ㄧ珫鐩村钩闈㈠唴鍋氬渾鍛ㄨ繍鍔ㄥ湪鏈�楂樼偣鐨勬儏鍐?/p>
锛?/p>
1
锛夌悆鍦ㄦ渶楂樼偣鍚戝績鍔涙槸鐢变粈涔堝姏鎻愪緵鐨勶紵
锛?/p>
2
锛夎嫢缁抽暱涓?/p>
r
锛屽皬鐞冭川閲忎负
m
锛屽皬鐞冭繍鍔ㄥ埌鏈�楂樼偣鏃剁殑閫熷害涓?/p>
v
锛屾眰缁冲鐞冪殑鎷夊姏锛?/p>
锛?/p>
3
锛夌敱锛?/p>
2
锛夌殑缁撴灉鍒嗘瀽褰撳皬鐞冮�熷害鍑忓皬锛岀怀涓媺鍔涘浣曞彉鍖栵紵
2
銆佽嫢灏忕悆鍦ㄥ厜婊戣建閬撳唴渚у仛鍦嗗懆杩愬姩锛岃建閬撳灏忕悆鐨勫脊鍔涙儏鍐?/p>
涓庝笂杩版儏鍐电被浼硷紝鍚屽浠瘯璇曡嚜宸卞垎鏋愪竴涓嬨�?/p>
銆栧綊绾虫�荤粨銆?/p>
鈥滅怀妯″瀷鈥濆鍥炬墍绀猴紝灏忕悆鍦ㄧ珫鐩村钩闈㈠唴鍋氬渾鍛ㄨ繍鍔ㄨ繃鏈�楂樼偣鎯呭喌銆?/p>
娉ㄦ剰锛?/p>
a
涓怀瀵瑰皬鐞冨彧鑳芥彁渚涙媺鍔涳紝鏂瑰悜鍚戜笅銆?/p>
锛?/p>
b
涓建閬撳灏忕悆鍙兘鎻愪緵寮瑰姏锛屾柟鍚戝悜涓嬶級
锛?/p>
1
锛夊皬鐞冭兘杩囨渶楂樼偣鐨勪复鐣屾潯浠讹細缁冲瓙鐨勬媺鍔涳紙鎴栬建閬撶殑寮瑰姏锛夊垰濂界瓑浜庨浂
mg
=
2
v
m
r
飪?/p>
v
涓寸晫
=
gr
锛?/p>
2
锛夊皬鐞冭兘杩囨渶楂樼偣鏉′欢锛?/p>
v
鈮?
gr
褰?/p>
v
>
gr
鏃讹紝缁冲鐞冩湁鎷夊姏锛堣建閬撳鐞冩湁鏀寔鍔涳級
锛?/p>
3
锛変笉鑳借繃鏈�楂樼偣鏉′欢锛?/p>
v
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gr
锛堝疄闄呬笂鐞冭繕娌℃湁鍒版渶楂樼偣鏃讹紝灏辫劚绂讳簡杞ㄩ亾锛?/p>
銆愪緥
1
銆?/p>
闀夸负
L
鐨勭粏缁筹紝涓�绔郴涓�璐ㄩ噺涓?/p>
m
鐨勫皬鐞冿紝鍙︿竴绔浐瀹氫簬鏌愮偣锛屽綋缁崇珫鐩存椂灏忕悆闈欐锛?/p>
鍐嶇粰灏忕悆涓�涓按骞冲垵閫熷害锛屼娇灏忕悆鍦ㄧ珫鐩村钩闈㈠唴鍋氬渾鍛ㄨ繍鍔紝骞朵笖鍒氬ソ鑳借繃鏈�楂樼偣锛屽垯涓嬪垪璇?/p>
娉曚腑姝ｇ‘鐨勬槸
A
锛庣悆杩囨渶楂樼偣鏃讹紝閫熷害涓洪浂
B
锛庣悆杩囨渶楂樼偣鏃讹紝缁崇殑鎷夊姏涓?/p>
mg
C
锛庡紑濮嬭繍鍔ㄦ椂锛岀怀鐨勬媺鍔涗负
2
v
m
L
D
锛庣悆杩囨渶楂樼偣鏃讹紝閫熷害澶у皬涓?/p>
Lg
v
路
缁?/p>
v
a
b
v
V
0
缁?/p>
v