- 1 -
2015-2016
瀛﹀勾骞夸笢鐪佹彮闃冲競鏅畞甯傝嫳鎵嶅崕渚ㄤ腑瀛﹂珮涓夛紙涓婏級绗笁娆?
鏈堣�冪墿鐞嗚瘯鍗?/p>
涓�銆佸崟閫夐锛堟瘡棰?/p>
6
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庝竴璐ㄧ偣娌?/p>
x
杞存鏂瑰悜鍋氱洿绾胯繍鍔紝閫氳繃鍧愭爣鍘熺偣鏃跺紑濮嬭鏃讹紝鍏?/p>
锕?/p>
t
鐨勫浘璞″鍥炬墍绀猴紝
鍒欙紙
锛?/p>
A
锛庤川鐐瑰仛鍖�閫熺洿绾胯繍鍔紝閫熷害涓?/p>
0.5m/s
B
锛庤川鐐瑰仛鍖�鍔犻�熺洿绾胯繍鍔紝鍔犻�熷害涓?/p>
0.5m/s
2
C
锛庤川鐐瑰湪
1s
鏈�熷害涓?/p>
1.5m/s
D
锛庤川鐐瑰湪绗?/p>
1s
鍐呯殑骞冲潎閫熷害
0.75m/s
2
锛庡鍥炬墍绀轰负鏉傛妧鈥滈《绔库�濊〃婕旓紝涓�浜虹珯鍦ㄥ湴涓婏紝鑲╀笂鎵涗竴璐ㄩ噺
M=5kg
鐨勭珫鐩寸绔匡紝绔夸笂鏈?
涓�璐ㄩ噺
m=50kg
鐨勪汉锛堝彲浠ョ湅鎴愯川鐐癸級
锛屽綋姝や汉娌跨潃绔栫洿绔夸互鍔犻�熷害
a=2m/s
2
鍔犻�熶笅婊戞椂锛岀绔?
瀵硅偐鐨勫帇鍔涘ぇ灏忎负锛堥噸鍔涘姞閫熷害
g=10m/s
2
锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
650 N
B
锛?/p>
550 N
C
锛?/p>
500 N
D
锛?/p>
450
3
锛庡鍥炬墍绀猴紝涓�鏍圭粏绾夸笅绔嫶涓�涓噾灞炲皬鐞?/p>
P
锛岀粏绾跨殑涓婄鍥哄畾鍦ㄩ噾灞炲潡
Q
涓婏紝
Q
鏀惧湪甯﹀皬
瀛旓紙灏忓瓟鍏夋粦锛夌殑姘村钩妗岄潰涓婏紝灏忕悆鍦ㄦ煇涓�姘村钩闈㈠唴鍋氬寑閫熷渾鍛ㄨ繍鍔紙鍦嗛敟鎽嗭級
锛庣幇浣垮皬鐞冩敼
鍒颁竴涓洿楂樹竴浜涚殑姘村钩闈笂鍋氬寑閫熷渾鍛ㄨ繍鍔紙鍥句腑
P鈥蹭綅缃級
锛屼袱娆￠噾灞炲潡
Q
閮介潤姝㈠湪妗岄潰涓?/p>
鐨勫悓涓�鐐癸紝鍒欏悗涓�绉嶆儏鍐典笌鍘熸潵鐩告瘮杈冿紝涓嬮潰鐨勫垽鏂腑姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A
锛庣粏绾挎墍鍙楃殑鎷夊姏鍙樺皬
B
锛庡皬鐞?/p>
P
杩愬姩鐨勮閫熷害鍙樺ぇ
C
锛?/p>
Q
鍙楀埌妗岄潰鐨勯潤鎽╂摝鍔涘彉灏?/p>
D
锛?/p>
Q
鍙楀埌妗岄潰鐨勬敮鎸佸姏鍙樺皬