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涓�冩暟瀛︿唬鍑犵患鍚堢粌涔犻
A
銆愬珐鍥虹粌涔犮�?/p>
涓�銆?/p>
閫夋嫨棰?/p>
1.
濡傚浘锛?/p>
O
鏄竟闀夸负
4cm
鐨勬鏂瑰舰
ABCD
鐨勪腑蹇冿紝
M
鏄?/p>
BC
鐨勪腑鐐癸紝鍔ㄧ偣
P
鐢?/p>
A
寮�濮嬫部鎶樼嚎
A
锕?/p>
B
锕?/p>
M
鏂瑰悜
鍖�閫熻繍鍔紝鍒?/p>
M
鏃跺仠姝㈣繍鍔紝閫熷害涓?/p>
1cm/s
锛庤
P
鐐圭殑杩愬姩鏃堕棿涓?/p>
t
锛?/p>
s
锛?/p>
锛岀偣
P
鐨勮繍鍔ㄨ矾寰勪笌
OA
銆?/p>
OP
鎵�
鍥存垚鐨勫浘褰㈤潰绉负
S
锛?/p>
cm
2
锛?/p>
锛屽垯鎻忚堪闈㈢Н
S
锛?/p>
cm
2
锛変笌鏃堕棿
t
锛?/p>
s
锛夌殑鍏崇郴鐨勫浘璞″彲浠ユ槸锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
2.
濡傚浘锛屽鏅氾紝灏忎寒浠庣偣
A
缁忚繃璺伅
C
鐨勬涓嬫柟娌跨洿绾胯蛋鍒扮偣
B
锛屼粬鐨勫奖闀?/p>
y
闅忎粬涓庣偣
A
涔嬮棿鐨勮窛绂?/p>
x
鐨勫彉鍖栬�屽彉鍖栵紝閭ｄ箞琛ㄧず
y
涓?/p>
x
涔嬮棿鍑芥暟鍏崇郴鐨勫浘璞″ぇ鑷翠负锛?/p>
锛?/p>
浜屻�佸～绌洪
3.
鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓紝鐐?/p>
A
鐨勫潗鏍囦负
(4
锛?/p>
0)
锛岀偣
B
鐨勫潗鏍囦负
(4
锛?/p>
10)
锛岀偣
C
鍦?/p>
y
杞翠笂锛屼笖鈻?/p>
ABC
鏄洿瑙掍笁瑙掑舰锛屽垯婊¤冻鏉′欢鐨?/p>
C
鐐圭殑鍧愭爣涓?/p>
______________
锛?/p>
4.
濡傚浘锛屽湪鍧愭爣杞翠笂鍙栫偣
A
1
锛?/p>
2
锛?/p>
0
锛?/p>
锛屼綔
x
杞寸殑鍨傜嚎涓庣洿绾?/p>
y=2x
浜や簬鐐?/p>
B
1
锛屼綔绛夎叞鐩磋涓夎褰?/p>
A
1
B
1
A
2
锛?/p>
鍙堣繃鐐?/p>
A
2
浣?/p>
x
杞寸殑鍨傜嚎浜ょ洿绾?/p>
y=2x
浜や簬鐐?/p>
B
2
锛屼綔绛夎叞鐩磋涓夎褰?/p>
A
2
B
2
A
3
锛?/p>
鈥?/p>
锛屽姝ゅ弽澶嶄綔绛夎叞鐩磋
涓夎褰紝褰撲綔鍒?/p>
A
n
锛?/p>
n
涓烘鏁存暟锛夌偣鏃讹紝鍒?/p>
A
n
鐨勫潗鏍囨槸
锛?/p>