姹熻タ鐪侀潠瀹変腑瀛﹂珮涓?/p>
10
鏈堟湀鑰?/p>
鐗╃悊璇曢
涓�銆侀�夋嫨棰橈紙鏈ぇ棰樺叡
10
灏忛锛屽叡
40
鍒嗭紝姣忓皬棰樿嚦灏戞湁涓�涓�夐」姝ｇ‘锛屽叏
閮ㄩ�夊寰?/p>
4
鍒嗭紝閫夊浣嗕笉鍏ㄥ緱
2
鍒嗭紝鏈夐�夐敊鐨勫緱
0
鍒嗭級
銆?/p>
1
銆佺敳涔欎袱杞﹀湪骞崇洿閬撹矾涓婂悓鍚戣繍鍔紝鍏?/p>
v--t
鍥捐薄濡?/p>
鍥炬墍绀猴紝鍥句腑
螖
OPQ
鍜?/p>
螖
OQT
鐨勯潰绉垎鍒负
S
1
鍜?/p>
S
2
锛?/p>
S
2
锛?/p>
S
1
锛?/p>
锛屽垵濮嬫椂鐢茶溅鍦ㄤ箼杞﹀墠鏂?/p>
S
0
澶勶紙
锛?/p>
A
锛氳嫢
S
0
=S
1
+S
2
锛屼袱杞︿笉浼氱浉閬囥�?/p>
B
锛氳嫢
S
0
锛?/p>
S
1
锛屼袱杞︾浉閬?/p>
2
娆°�?/p>
C
锛氳嫢
S
0
=S
1
锛屼袱杞︾浉閬?/p>
1
娆°�?/p>
D
锛氳嫢
S
0
=S
2
锛屼袱杞︾浉閬?/p>
1
娆°�?/p>
2
銆佷竴杈嗚繍閫佹矙瀛愮殑鑷嵏鍗¤溅瑁呮弧娌欏瓙锛屾矙绮掍箣闂寸殑鍔ㄦ懇鎿﹀洜鏁颁负
u
1
锛屾矙瀛愪笌杞?/p>
鍘㈠簳閮ㄦ潗鏂欑殑鍔ㄦ懇鎿﹀洜鏁颁负
u
2
锛堝凡鐭?/p>
u
2
锛?/p>
u
1
锛夎溅鍘㈢殑鍊捐鐢?/p>
胃
琛ㄧず锛屼笅鍒楄娉曟
纭槸
A
锛氳椤哄埄鍦板嵏骞插噣鍏ㄩ儴娌欏瓙锛屽簲婊¤冻
u
2
锛?/p>
tan
胃
B
锛氳椤哄埄鍦板嵏骞插噣鍏ㄩ儴娌欏瓙锛屽簲婊¤冻
u
2
锛?/p>
sin
胃
C
锛氬彧鍗稿幓閮ㄥ垎娌欏瓙锛岃溅涓婅繕鐣欐湁涓�閮ㄥ垎娌欏瓙锛屽簲婊¤冻
u
2
锛?/p>
tan
胃
锛?/p>
u
1
D
锛氬彧鍗稿幓閮ㄥ垎娌欏瓙锛岃溅涓婅繕鐣欐湁涓�閮ㄥ垎娌欏瓙锛屽簲婊¤冻
u
2
锛?/p>
u
1
锛?/p>
tan
胃
3
銆佹惉杩愬伐浜烘部绮楃硻鏂滈潰鎶婁竴涓墿浣撴媺涓婂崱杞︼紝褰撳姏娌挎枩闈㈠悜涓婏紝澶у皬涓?/p>
F
鏃讹紝
鐗╀綋鐨勫姞閫熷害涓?/p>
a
1
锛涜嫢淇濇寔鍔涚殑鏂瑰悜涓嶅彉锛屽ぇ灏忎负
2F
鏃讹紝鐗╀綋鐨勫姞閫熷害涓?/p>
a
2
,
鍒欙紙
锛?/p>
A
锛?/p>
a
1
=a
2
B:a
1
<a
2
<2a
1
C:a
1
=2a
2
D:a
2
>2a
1
4
銆佸鍥炬墍绀猴紝鍦ㄥ鍔涗綔鐢ㄤ笅鏌愯川鐐硅繍鍔ㄧ殑
v
鈥?/p>
t
鍥捐薄涓?/p>
姝ｅ鸡鏇茬嚎锛屼粠鍥句腑鍙互鍒ゆ柇锛?/p>
锛?/p>
A
锛氬湪
O
锝?/p>
t
1
鏃堕棿鍐咃紝澶栧姏鍋氭鍔?/p>
B
锛氬湪
O
锝?/p>
t
1
鏃堕棿鍐咃紝澶栧姏鐨勫姛鐜囬�愭笎澧炲姞
C
锛氬湪
t
2
鏃跺埢锛屽鍔涚殑鍔熺巼鏈�澶?/p>
D
锛氬湪
t
1
锝?/p>
t
3
鏃堕棿鍐咃紝澶栧姏鍋氬姛鐨勬�诲姛涓洪浂
5
銆佸鍥炬墍绀猴細鍥哄畾鐨勫厜婊戠珫鐩存潌涓婂鐫�涓�涓粦鍧楋紝
鐢ㄨ交缁崇郴鐫�婊戝潡缁曡繃鍏夋粦鐨勫畾婊戣疆锛屼互澶у皬鎭掑畾鐨?/p>
鎷夊姏
F
鎷夌怀锛屼娇婊戝潡浠?/p>
A
鐐硅捣鐢遍潤姝㈠紑濮嬩笂鍗囷紝鑻?/p>
浠?/p>
A
鐐逛笂鍗囪嚦
B
鐐瑰拰浠?/p>
B
鐐逛笂鍗囪嚦
C
鐐圭殑杩囩▼涓媺
鍔?/p>
F
鍋氱殑鍔熷垎鍒负
W
1
鍜?/p>
W
2
锛屾粦鍧楃粡
B
銆?/p>
C
涓ょ偣鏃剁殑鍔?/p>
鑳藉垎鍒槸
E
KB
銆?/p>
E
KC
锛屽浘涓?/p>
AB=BC
锛屽垯涓�瀹氭湁锛?/p>
锛?/p>
A
锛?/p>
W
1
>W
2
B
锛?/p>
W
1
<W
2
C
锛?/p>
E
KB
>E
KC
D
锛?/p>
E
KB
<E
Kc
6
銆佸鍥炬墍绀猴紝涓�鏈ㄥ潡鍙楀埌涓�姘村钩鍔?/p>
F
浣滅敤闈欐浜?/p>
鏂滈潰涓婏紝姝ゅ姏
F
鐨勬柟鍚戜笌鏂滈潰搴曡竟骞宠锛屽鏋滃皢
鍔?/p>
F
鎾ゆ帀锛屼笅鍒楀鏈ㄥ潡鐨勬弿杩版纭殑鏄紙
锛?/p>
A
銆佹湪鍧楀皢娌挎枩闈笅婊?/p>
B
銆佹湪鍧楀彈鍒扮殑鎽╂摝鍔涘彉灏?/p>
C
銆佹湪鍧楀嵆鑾峰緱鍔犻�熷害銆?/p>
0
t
1
t
2
t
3
t
v
A
B
C
F
胃
F