绗〉
1
涓�銆侀�夋嫨棰橈紙鏈鍏?/p>
12
灏忛锛屾瘡灏忛
4
鍒嗭紟鍏?/p>
48
鍒嗭紝鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝绗?/p>
1
锝?/p>
8
棰樺彧鏈変竴涓�?
椤圭鍚堥鐩姹傦紝绗?/p>
9
锝?/p>
12
棰樻湁澶氫釜閫夐」绗﹀悎棰樼洰瑕佹眰锛屽叏閮ㄩ�夊鐨勫緱
4
鍒嗭紝閫夊浣嗕笉鍏ㄧ殑寰?/p>
2
鍒嗭紝
鏈夐敊閫夌殑寰?/p>
O
鍒嗭紟璇峰皢绗﹀悎棰樼洰瑕佹眰閫夐」鍓嶇殑瀛楁瘝濉湪绛旈鍗峰搴旈鍙蜂笅鐨勭┖鏍间腑锛?/p>
1
锛庝笅鍒楄娉曟纭殑鏄?/p>
A.
鐗涢】绗竴瀹氬緥鍙堢О鎯�у畾寰嬶紝鎵�浠ユ儻鎬у畾寰嬩笌鎯�х殑瀹炶川鐩稿悓
B.
鐗涢】绗竴瀹氬緥鏄墰椤跨浜屽畾寰嬬殑鐗规畩鎯呭舰锛屽畠浠兘鍙�氳繃瀹為獙鏉ラ獙璇?/p>
C.
鐗涢】杩愬姩瀹氬緥鍜屽姩閲忓畧鎭掑畾寰嬫棦閫傜敤浜庝綆閫熴�佸畯瑙傜殑鐗╀綋锛屼篃閫傜敤浜庨珮閫熴�佸井瑙傜殑绮掑瓙
D
锛庝冀鍒╃暐閫氳繃鐞嗘兂鏂滈潰瀹為獙锛岃鏄庣墿浣撶殑杩愬姩涓嶉渶瑕佸姏鏉ョ淮鎸?/p>
2
锛庝竴鐗╀綋鍋氬寑鍑忛�熺洿绾胯繍鍔紝鍦?/p>
4s
鍐呯殑浣嶇Щ涓?/p>
16m
锛岄�熷害鍙樹负鍘熸潵鐨勪笁鍒嗕箣涓�锛屾柟鍚戜笉鍙橈紟鍒欒鐗╀綋鐨?
鍔犻�熷害澶у皬涓?/p>
A. 1m/s
2
B. 1.5m/s
2
C. 2m/s
2
D.0.75m/s
2
3
锛庡鍥芥墍绀猴紝鍋囪鐢层�佷箼涓ら鍗槦浠ョ浉鍚岀殑杞ㄩ亾鍗婂緞鍒嗗埆缁曡川閲忎负
M1
鍜?/p>
M2(M1>M2)
鐨勮鏄熷仛鍖�閫熷渾鍛ㄨ繍
鍔紟鍒欎笅鍒楄娉曟纭殑鏄?/p>
A
锛庣敳鍜屼箼鐨勫悜蹇冨姞閫熷害鐩哥瓑
B.
鐢插拰涔欒繍琛岀殑鍛ㄦ湡鐩哥瓑
C
锛庣敳鐨勮閫熷害姣斾箼鐨勫皬
D
锛庣敳鐨勭嚎閫熷害姣斾箼鐨勫ぇ
4
锛?/p>
濡傚浘鎵�绀猴紝
鐢ㄥ畬鍏ㄧ浉鍚岀殑杞昏川寮圭哀
1
銆?/p>
2
銆?/p>
3
灏嗕袱涓浉鍚岀殑灏忕悆杩炴帴骞舵噵鎸傦紝
灏忕悆闈欐鏃讹紝
寮圭哀
3
姘村钩锛?
寮圭哀
1
涓庣珫鐩存柟鍚戠殑澶硅胃
=30
0
锛屽脊绨?/p>
l
鐨勫脊鍔涘ぇ灏忎负
F
锛屽垯
A.
寮圭哀
3
鐨勫脊鍔涘ぇ灏忎负
2FB
锛庡脊绨?/p>
3
鐨勫脊鍔涘ぇ灏忎负
2
F
C
锛庢瘡涓皬鐞冮噸鍔涘ぇ灏忎负
F
2
3
D
锛庢瘡涓皬鐞冮噸鍔涘ぇ灏忎负
F
3