2018
鏂板寳甯堝ぇ鐗堝叚骞寸骇鏁板涓嬪唽
绗洓鍗曞厓锛堟姣斾緥鍜屽弽姣斾緥锛夋祴璇曢
瀛︽牎
鐝骇
濮撳悕
鎴愮哗
涓�銆佸～绌恒�?/p>
锛?/p>
23
鍒嗭級
1
銆佷袱绉嶇浉鍏宠仈鐨勯噺锛屼竴绉嶉噺鍙樺寲锛屽彟涓�绉嶉噺涔熼殢鐫�鍙樺寲锛屽鏋滆繖涓ょ閲忎腑
鐩稿搴旂殑涓や釜鏁扮殑姣斿�间竴瀹氾紝閭ｄ箞杩欎袱绉嶉噺灏卞彨鍋氾紙
锛?/p>
锛屽畠浠殑鍏?/p>
绯诲彨鍋氾紙
锛夊叧绯伙紝鐢ㄥ瓧姣嶈〃绀猴紙
锛?/p>
銆?/p>
2
銆佷袱绉嶇浉鍏宠仈鐨勯噺锛屼竴绉嶉噺鍙樺寲锛屽彟涓�绉嶉噺涔熼殢鐫�鍙樺寲锛屽鏋滆繖涓ょ閲忎腑
鐩稿搴旂殑涓や釜鏁扮殑绉竴瀹氾紝
閭ｄ箞杩欎袱绉嶉噺灏卞彨鍋?/p>
锛?/p>
锛?/p>
锛?/p>
瀹冧滑鐨勫叧绯?/p>
鍙仛锛?/p>
锛夊叧绯伙紝鐢ㄥ瓧姣嶈〃绀猴紙
锛?/p>
銆?/p>
3
銆?/p>
濡傛灉
A
脳
B=C
锛?/p>
A
銆?/p>
B
銆?/p>
C
鍧囦笉涓?/p>
0
锛?/p>
閭ｄ箞褰?/p>
A
涓�瀹氭椂锛?/p>
B
鍜?/p>
C
鎴?/p>
锛?/p>
锛?/p>
锛?/p>
褰?/p>
B
涓�瀹氭椂锛?/p>
A
鍜?/p>
C
鎴愶紙
锛?/p>
锛屽綋
C
涓�瀹氭椂锛?/p>
A
鍜?/p>
B
鎴愶紙
锛?/p>
銆?/p>
4
銆?/p>
锛?/p>
1
锛夎〃涓紙
锛夊拰锛?/p>
锛夋槸鐩稿叧鑱旂殑閲忋�?/p>
锛?/p>
2
锛?/p>
锛?/p>
锛夋槸涓�瀹氱殑閲忋�?/p>
锛?/p>
3
锛夎繖涓ょ鐩稿叧鑱旂殑閲忔垚锛?/p>
锛夊叧绯汇�?/p>
5
銆?/p>
濡傛灉
x
鍜?/p>
y
鎴愭姣斾緥锛?/p>
m
锛濓紙
锛?/p>
锛?/p>
n
锛濓紙
锛?/p>
锛?/p>
濡傛灉
y
鍜?/p>
x
鎴愬弽姣斾緥锛?/p>
m
锛濓紙
锛?/p>
锛?/p>
n
锛濓紙
锛?/p>
銆?/p>
6
銆佸鏋?/p>
m+n=10
锛岄偅涔?/p>
m
鍜?/p>
n
锛?/p>
锛?/p>
锛?/p>
濡傛灉
5x=y,
閭ｄ箞
x
鍜?/p>
y
锛?/p>
锛?/p>
锛?/p>
濡傛灉
a
6
=b
锛?/p>
閭ｄ箞
a
鍜?/p>
b
锛?/p>
锛?/p>
銆?/p>
7
銆佸０闊冲湪绌烘皵涓紶鎾殑閫熷害
v(m/s)
涓庢俯搴?/p>
t(
鈩冿級涔嬮棿鐨勫叧绯绘槸锛氭俯搴︿箻
0.6
鍐嶅姞
331
绛変簬閫熷害锛岀敤鍚湁瀛楁瘝鐨勫紡瀛愯〃绀猴紙
锛?/p>
銆傚鏋?/p>
褰撴椂姘旀俯
15
鈩冿紝閭ｄ箞澹伴煶浼犳挱鐨勯�熷害鏄紙
锛?/p>
锛涘鏋滃０闊充紶鎾殑閫熷害
鏄?/p>
349m/s
锛岄偅涔堝綋鏃剁殑姘旀俯鏄紙
锛?/p>
銆?/p>
浜屻�佸垽鏂銆?/p>
锛?/p>
5
鍒嗭級
1
銆?/p>
涓ょ鐩稿叧鑱旂殑閲忥紝
涓嶆垚姝ｆ瘮渚嬪氨鎴愬弽姣斾緥銆?/p>
锛?/p>
锛?/p>
2
銆佸渾鐨勫懆闀夸竴瀹氭椂锛岀洿寰勫拰鍦嗗懆鐜囨垚鍙嶆瘮渚嬨�?/p>
锛?/p>
锛?/p>
3
銆?/p>
鍥句笂璺濈涓�瀹氾紝
瀹為檯璺濈鍜屾瘮渚嬪昂鎴愭姣斾緥銆?/p>
锛?/p>
锛?/p>
4
銆?/p>
鍦嗘煴鐨勮〃闈㈢Н涓�瀹氭椂锛?/p>
瀹冪殑搴曢潰绉拰渚ч潰绉垚鍙嶆瘮渚嬨�?/p>
锛?/p>
锛?/p>
5
銆?/p>
A
鍜?/p>
B
鎴愬弽姣斾緥锛?/p>
B
鍜?/p>
C
鎴愬弽姣斾緥锛?/p>
閭ｄ箞
A
鍜?/p>
C
鎴愭姣斾緥銆?/p>
锛?/p>
锛?/p>
鏁伴噺锛堜釜锛?/p>
1
2
3
4
鎬讳环锛堝厓锛?/p>
15
30
45
60
x
4
6
n
y
3
m
1.5