09
灞婇珮涓夌悊绉戠患鍚堣兘鍔涙祴璇曞嵎
锛滃叚锛?/p>
鏈瘯鍗峰叏涓洪�夋嫨棰橈紝鍏?/p>
75
灏忛锛屾瘡灏忛
2
鍒嗭紝婊″垎
150
鍒嗐�傝�冭瘯鐢ㄦ椂
120
鍒嗛挓銆?/p>
1
銆佸湪鐗╃悊瀛﹀彂灞曠殑杩囩▼涓紝璁稿鐗╃悊瀛﹀鐨勭瀛﹀彂鐜版帹鍔ㄤ簡浜虹被鍘嗗彶鐨勮繘姝ワ紝鍦ㄥ浠ヤ笅鍑犱綅鐗?/p>
鐞嗗瀹舵墍浣滅瀛﹁础鐚殑鍙欒堪涓紝
涓嶆纭?/p>
锛庯紟锛?
鐨勮娉曟槸
A.
濂ユ柉鐗瑰彂鐜伴�氱數瀵肩嚎鐨勫懆鍥村瓨鍦ㄧ鍦?/p>
B.
鐖卞洜鏂潶鎻愬嚭鐨勭嫮涔夌浉瀵硅鏄椂绌鸿鍙戝睍鍙蹭笂鐨?/p>
涓�娆″ぇ鍙橀潻
C.
浼藉埄鐣ュ彂鐜颁簡琛屾槦杩愬姩瀹氬緥
D.
鐗涢】鎬荤粨浜嗙墰椤胯繍鍔ㄥ畾寰嬪拰涓囨湁寮曞姏瀹氬緥锛?/p>
寤?/p>
绔嬩簡瀹屾暣鐨勭粡鍏稿姏瀛︿綋绯?/p>
2
銆佹煇鐗╀綋娌跨洿绾胯繍鍔ㄧ殑
v-t
鍥惧儚濡傚浘鎵�绀猴紝鐢卞浘鍙互鐪嬪嚭鐗╀綋鐨勮繍鍔ㄦ儏鍐典负
A
锛庢部鐩寸嚎杩愬姩锛屾柟鍚戜笉鏀瑰彉
B
锛?/p>
1
绉掓湯杩愬姩鏂瑰悜鍙戠敓鏀瑰彉
C
锛?/p>
2
绉掓湯鍥炲埌鍑哄彂鐐?/p>
D
锛庡姞閫熷害澶у皬濮嬬粓鏈敼鍙?/p>
3
銆佺墿浣撻�氳繃涓や釜杩炵画鐩哥瓑浣嶇Щ鐨勫钩鍧囬�熷害鍒嗗埆涓?/p>
v
1
=10m/s
锛?/p>
v
2
=15m/s
锛?/p>
鍒欑墿浣撳湪鏁翠釜杩愬姩杩囩▼涓殑骞冲潎閫熷害鏄?/p>
A.12.5m/s B.12m/s C.12.75m/s D.11.75m/s
4
銆佺編鍥界殑
NBA
绡悆璧涢潪甯哥簿褰╋紝鍚稿紩浜嗕紬澶氳浼楃粡甯告湁杩欐牱鐨勫満闈細鍦ㄤ复缁堝満
0.1s
鐨勬椂鍊欙紝杩?/p>
鍔ㄥ憳鎶婄悆鎶曞嚭涓斿噯纭懡涓紝鑾峰緱姣旇禌鐨勮儨鍒┿�傚鏋滅鐞冪寮�杩愬姩鍛樼殑鎵嬫椂鍔ㄨ兘涓?
2
1
2
1
mv
锛屽嚭鎵嬮珮
搴︿负
h
1
锛岀绛愯窛鍦伴潰楂樺害涓?/p>
h
2
锛岀悆鐨勮川閲忎负
m
锛岀┖姘旈樆鍔涗笉璁★紝鍒欑鐞冭繘绛愭椂鐨勫姩鑳戒负
A
锛?
2
1
2
1
mv
+
2
1
mgh
mgh
飥?/p>
B
锛?/p>
2
1
2
1
mv
+
1
2
mgh
mgh
飥?/p>
C
锛?/p>
2
1
mgh
mgh
飥?/p>
锛?/p>
2
1
2
1
mv
D
锛?/p>
1
2
mgh
mgh
飥?/p>
锛?/p>
2
1
2
1
mv
5
銆佸鍥炬墍绀猴紝鏈変笁涓川閲忕浉绛夊垎鍒甫姝ｇ數銆佽礋鐢靛拰涓嶅甫鐢电殑灏忕悆锛屼粠骞宠鏉跨數鍦轰腑鐨?/p>
P
鐐逛互鐩?
鍚岀殑鍒濋�熷害鍨傜洿浜庣數鍦烘柟鍚戣繘鍏ョ數鍦猴紝瀹冧滑鍒嗗埆钀藉埌
A
銆?/p>
B
銆?/p>
C
涓夌偣锛屽垯鍙互鏂畾锛?/p>
A
锛庤惤鍒?/p>
A
鐐圭殑灏忕悆甯︽鐢碉紝钀藉埌
C
鐐圭殑灏忕悆甯﹁礋鐢?/p>
B
锛庝笁灏忕悆鍦ㄧ數鍦轰腑杩愬姩鏃堕棿鐩哥瓑
C
锛庝笁灏忕悆鍒拌揪姝ｆ瀬鏉跨殑鍔ㄨ兘鍏崇郴鏄?/p>
KC
KB
KA
E
E
E
飥?/p>
飥?/p>
D
锛庝笁灏忕悆鍦ㄧ數鍦轰腑杩愬姩鐨勫姞閫熷害鏄?/p>
C
B
A
a
a
a
飥?/p>
飥?/p>
6
銆?/p>
鈥滃濞ヤ竴鍙封�濇帰鏈堝崼鏄熺殑鎴愬姛鍙戝皠鏍囧織鐫�鎴戝浗鍦ㄦ繁澶┖鎺㈢储鏂归潰杩涘叆鍏ㄦ柊鐨勫彂灞曢樁娈点�傛帰鏈堝崼
鏄熶粠鍦伴潰鍙戝皠鍚庝粠
12h
缁曞湴鐞冭繍琛屼竴鍛ㄧ殑杞ㄩ亾鍙樿建鍒?/p>
48h
缁曞湴鐞冭繍琛屼竴鍛ㄧ殑杞ㄩ亾锛?/p>
鍋囪鎺㈡湀鍗槦
鏄湪鍦嗗舰杞ㄩ亾涓婅繍琛岋紝鍒欎笅杩板垽鏂纭殑鏄?/p>
A
锛?/p>
鈥滃濞ヤ竴鍙封�濅互
48h
杩愯涓�鍛ㄦ椂閫熺巼姣旇緝灏?/p>
B
锛?/p>
鈥滃濞ヤ竴鍙封�濅互
12h
杩愯涓�鍛ㄦ椂鍚戝績鍔犻�?/p>
搴︽瘮杈冨皬