銆婁簩娆″嚱鏁般�嬫暀妗?/p>
銆愭暀瀛︾洰鏍囥�?/p>
锛?/p>
1
锛夎兘澶熸牴鎹疄闄呴棶棰橈紝鐔熺粌鍦板垪鍑轰簩娆″嚱鏁板叧绯诲紡锛屽苟姹傚嚭鍑芥暟鐨勮嚜鍙橀噺鐨?/p>
鍙栧�艰寖鍥达紱
锛?/p>
2
锛夋敞閲嶅鐢熷弬涓庯紝鑱旂郴瀹為檯锛屼赴瀵屽鐢熺殑鎰熸�ц璇嗭紝鍩瑰吇瀛︾敓鐨勮壇濂界殑瀛︿範
涔犳儻銆?/p>
銆愰噸鐐归毦鐐广�?/p>
鑳藉鏍规嵁瀹為檯闂锛?/p>
鐔熺粌鍦板垪鍑轰簩娆″嚱鏁板叧绯诲紡锛?/p>
骞舵眰鍑哄嚱鏁扮殑鑷彉閲忕殑鍙栧�艰寖
鍥淬�?/p>
銆愭暀瀛﹁繃绋嬨�?/p>
涓�銆佽瘯涓�璇?/p>
闂
1(P2)
1.
璁剧煩褰㈣姳鍦冪殑鍨傜洿浜庡鐨勪竴杈?/p>
AB
鐨勯暱涓?/p>
xm
锛屽厛鍙?/p>
x
鐨勪竴浜涘�硷紝绠楀嚭鐭╁舰鐨?/p>
鍙︿竴杈?/p>
BC
鐨勯暱锛?/p>
杩涜�屽緱鍑虹煩褰㈢殑闈㈢Н
ym
2
锛?/p>
璇曞皢璁＄畻缁撴灉濉啓鍦ㄤ笅琛ㄧ殑绌烘牸涓細
2
锛?/p>
x
鐨勫�兼槸鍚﹀彲浠ヤ换鎰忓彇
?
鏈夐檺瀹氳寖鍥村悧
?
3
锛?/p>
鎴戜滑鍙戠幇锛?/p>
褰?/p>
AB
鐨勯暱
(x)
纭畾鍚庯紝
鐭╁舰鐨勯潰绉?/p>
(y)
涔熼殢涔嬬‘瀹氾紝
y
鏄?/p>
x
鐨勫嚱鏁帮紝
璇曞啓鍑鸿繖涓嚱鏁扮殑鍏崇郴寮忥紝
瀵逛簬
1
锛?/p>
鍙瀛︾敓鏍规嵁琛ㄤ腑缁欏嚭鐨?/p>
AB
鐨勯暱锛屽～鍑虹浉搴旂殑
BC
鐨勯暱鍜岄潰绉紝鐒跺悗
寮曞瀛︾敓瑙傚療琛ㄦ牸涓暟鎹殑鍙樺寲鎯呭喌锛屾彁鍑洪棶棰橈細
(1)
浠庢墍濉〃鏍间腑锛屼綘鑳藉彂鐜?/p>
浠�涔堬紵
(2)
瀵瑰墠闈㈡彁鍑虹殑闂鐨勮В绛旇兘浣滃嚭浠�涔堢寽鎯?/p>
?
璁╁鐢熸�濊�冦�佷氦娴併�佸彂琛ㄦ剰
瑙侊紝杈炬垚鍏辫瘑锛氬綋
AB
鐨勯暱涓?/p>
5cm
锛?/p>
BC
鐨勯暱涓?/p>
10m
鏃讹紝鍥存垚鐨勭煩褰㈤潰绉渶澶э紱
鏈�澶ч潰绉负
50m
2
銆?/p>
瀵逛簬
2
锛?/p>
鍙瀛︾敓鍒嗙粍璁ㄨ銆佷氦娴侊紝鐒跺悗鍚勭粍娲句唬琛ㄥ彂琛ㄦ剰瑙併�傚舰鎴愬叡璇嗭紝
x
鐨?/p>
鍊间笉鍙互浠绘剰鍙栵紝鏈夐檺瀹氳寖鍥达紝鍏惰寖鍥存槸
0
锛?/p>
x
锛?/p>
10
銆?/p>
瀵逛簬
3
锛?/p>
鏁欏笀鍙彁鍑洪棶棰橈紝
(1)
褰?/p>
AB=xm
鏃讹紝
BC
闀跨瓑浜庡灏?/p>
m?(2)
闈㈢Н
y
绛変簬澶?/p>
灏?/p>
?
骞舵寚鍑?/p>
y=x(20
锛?/p>
2x)(0
锛?/p>
x
锛?/p>
10)
灏辨槸鎵�姹傜殑鍑芥暟鍏崇郴寮忥紟