www.3edu.net
鏁欏笀鍔╂墜
瀛︾敓甯墜
瀹堕暱鏈嬪弸
www.aaaxk.com
www.3edu.net
鏁欏笀鍔╂墜
瀛︾敓甯墜
瀹堕暱鏈嬪弸
www.aaaxk.com
灞变笢鐪佹柊浜烘暀鐗堢墿鐞?/p>
杩愬姩鐨勬弿杩?/p>
鍖�鍙橀�熺洿绾胯繍鍔ㄧ殑鐮旂┒鍗曞厓娴嬭瘯
涓�銆侀�夋嫨棰?/p>
(
鍏?/p>
25
灏忛
)
1.
鍏充簬鍖�鍙橀�熺洿绾胯繍鍔ㄧ殑涓嬪垪淇℃伅鏄惁姝ｇ‘
( )
A
锛庡寑鍔犻�熺洿绾胯繍鍔ㄧ殑閫熷害涓�瀹氫笌鏃堕棿鎴愭姣?/p>
B
锛庡寑鍑忛�熺洿绾胯繍鍔ㄥ氨鏄姞閫熷害涓鸿礋鍊肩殑杩愬姩
C
锛庡寑鍙橀�熺洿绾胯繍鍔ㄧ殑閫熷害闅忔椂闂村潎鍖�鍙樺寲
D
锛庨�熷害鍏堝噺灏忓啀澧炲ぇ鐨勮繍鍔ㄤ竴瀹氫笉鏄寑鍙橀�熺洿绾胯繍鍔?/p>
2.
涓�鐗╀綋浠ュ垵閫?/p>
v
0
鍔犻�熷害
a
浣滃寑鍔犻�熺洿绾胯繍鍔紝
a
鍜?/p>
v
0
鍚屽悜锛屽綋
a
鐨勫ぇ灏忛�愭笎鍑忓皬鏃讹紝鍒?/p>
( )
A
锛庨�熷害鍜屾�讳綅绉婚兘鍑忓皬
B
锛庨�熷害鍑忓皬鎬讳綅
绉诲澶?/p>
C
锛?/p>
閫熷害鍜屾�讳綅绉讳粛閮藉澶?/p>
D
锛?/p>
閫熷害澧炲ぇ鎬讳綅绉诲噺灏?/p>
3.
涓�鐗╀綋鍋氬寑鍑忛�熺洿绾胯繍鍔紝
鍒濋�熷害涓?/p>
10m/s
锛?/p>
鍔犻�熷害澶у皬涓?/p>
1m/s
2
锛?/p>
鍒欑墿浣撳湪鍋滄杩愬姩
鍓?/p>
ls
鍐呯殑骞冲潎閫熷害涓?/p>
( )
A
锛?/p>
5.5
m/s
B
锛?/p>
5
m/s
C
锛?/p>
l
m/s
D
锛?/p>
0.5 m/s
4.
鍏氦杞﹁繘绔欐椂鐨勫埞杞﹁繃绋嬪彲杩戜技鐪嬩綔鍖�鍑忛�熺洿绾胯繍鍔紝杩涚珯鏃剁殑
閫熷害涓?/p>
5m
锛?/p>
s
锛?/p>
鍔犻�熷害澶у皬涓?/p>
1m
锛?/p>
s
2
锛?/p>
鍒欎笅鍒楀垽鏂纭殑鏄?/p>
( )
A
锛庤繘绔欐墍闇�鏃堕棿涓?/p>
5s
B
锛?/p>
6s
鏃剁殑浣嶇Щ涓?/p>
12m
C
锛庤繘绔欒繃绋嬬殑骞冲潎閫熷害涓?/p>
2.5m
锛?/p>
s