....
....
妯″潡缁煎悎娴嬭瘯鍗?/p>
鏈瘯鍗峰垎绗厾鍗?/p>
(
閫夋嫨棰?/p>
)
鍜岀鈪″嵎
(
闈為�夋嫨棰?/p>
)
涓ら儴鍒嗭紝婊″垎
100
鍒嗭紝鑰冭瘯鏃堕棿
90
鍒嗛挓锛?/p>
鐝骇
________
濮撳悕
________
鍒嗘暟
________
绗厾鍗?/p>
(
閫夋嫨棰橈紝鍏?/p>
40
鍒?/p>
)
涓�銆侀�夋嫨棰?/p>
(
鏈ぇ棰樺叡
10
灏忛锛屾瘡棰?/p>
4
鍒嗭紝婊″垎
40
鍒嗭紟鍦ㄦ瘡灏忛缁欏嚭鐨勯�夐」涓紝鏈夌殑灏忛鍙湁涓�涓�?/p>
椤规纭紝鏈夌殑灏忛鏈夊涓�夐」姝ｇ‘锛庡叏閮ㄩ�夊鐨勫緱
4
鍒嗭紝閫変笉鍏ㄧ殑寰?/p>
2
鍒嗭紝鏈夐敊閫夋垨涓嶉�夌殑寰?/p>
0
鍒?/p>
)
1
锛庡叧浜庢儻鎬э紝浠ヤ笅璇存硶姝ｇ‘鐨勬槸
(
)
A
锛庝汉鍦ㄨ蛋璺椂娌℃湁鎯�э紝琚粖鍊掓椂鎵嶆湁鎯�?/p>
B
锛庣櫨绫宠禌璺戝埌杈剧粓鐐规椂涓嶈兘绔嬪嵆鍋滀笅鏉ユ槸鐢变簬鏈夋儻鎬э紝鍋滀笅鏉ュ悗涔熷氨娌℃湁鎯�т簡
C
锛庣墿浣撳湪涓嶅彈澶栧姏浣滅敤鏃舵湁鎯�э紝鍙楀埌澶栧姏浣滅敤鍚庢儻鎬у氨琚厠鏈嶄簡
D
锛庣墿浣撶殑鎯�т笌鐗╀綋鐨勮繍鍔ㄧ姸鎬佸強鍙楀姏鎯呭喌鍧囨棤鍏?/p>
銆愮瓟妗堛�?/p>
D
銆愯В鏋愩�?/p>
鎯�ф槸鐗╀綋鐨勫浐鏈夊睘鎬э紝涓庣墿浣撶殑杩愬姩鐘舵�佸拰鍙楀姏鎯呭喌鏃犲叧锛屽彧鐢辩墿浣撶殑璐ㄩ噺鍐冲畾锛?/p>
2
锛庡鍥炬墍绀烘槸鎴戝浗鏂扮爺鍒剁殑鏂拌兘婧愯矾鐏紝鐓ф槑鎵�闇�瑕佺殑鑳介噺涓昏鏉ユ簮浜庡お闃宠兘锛庤嫢鏂拌兘婧愯矾鐏殑
璐ㄩ噺
m
锛?/p>
2kg(
g
鍙?/p>
10m/s
2
)
锛屽垯鍊炬枩鏉嗗鏂拌兘婧愯矾鐏殑寮瑰姏涓?/p>
(
)
A
锛庡ぇ灏忎负
20N
锛屾柟鍚戝钩琛屼簬鍊炬枩鏉嗗悜涓?/p>
B
锛庡ぇ灏忎负
20N
锛屾柟鍚戠珫鐩村悜涓?/p>
C
锛庡ぇ灏忎负
20N
锛屾柟鍚戝瀭鐩翠簬鍊炬枩鏉嗗悜涓?/p>
D
锛庡ぇ灏忎负
10N
锛屾柟鍚戝钩琛屼簬鍊炬枩鏉嗗悜涓?/p>
銆愮瓟妗堛�?/p>
B
銆愯В鏋愩�?/p>
鐢变簬鏂拌兘婧愯矾鐏彈閲嶅姏
G
鍜屽�炬枩鏉嗙殑寮瑰姏浣滅敤鑰屽浜庨潤姝㈢姸鎬侊紝鏁呭�炬枩鏉嗗鏂拌兘婧愯矾鐏殑寮?/p>
鍔涗笌鍏堕噸鍔涚瓑澶у弽鍚戯紝鍗冲ぇ灏忎负
20N
锛屾柟鍚戠珫鐩村悜涓婏紝閫夐」
B
姝ｇ‘锛?/p>
3
锛庝竴璐ㄧ偣鐢遍潤姝㈠紑濮嬪仛鐩寸嚎杩愬姩锛屽叾
a
锛?/p>
t
鍥捐薄濡傚浘鎵�绀猴紝涓嬪垪璇存硶涓纭殑鏄?/p>
(
)
A
锛?/p>
1 s
鏈川鐐圭殑杩愬姩閫熷害鏈�澶?/p>
B
锛?/p>
4 s
鏈川鐐瑰洖鍒板嚭鍙戠偣
C
锛?/p>
1 s
鏈拰
3 s
鏈川鐐圭殑杩愬姩閫熷害鐩稿悓
D
锛?/p>
2 s
鏈川鐐圭殑杩愬姩閫熷害涓?/p>
4 m/s
銆愮瓟妗堛�?/p>
C
銆愯В鏋愩�?/p>
璐ㄧ偣鐢遍潤姝㈠紑濮嬭繍鍔紝鍦?/p>
2
s
鏈紝姝ｅ悜闈㈢Н鏈�澶э紝璐ㄧ偣杩愬姩鐨勯�熷害鏈�澶э紝鏁?/p>
A
閿欒锛?/p>
4
s
鏈川
鐐归�熷害涓洪浂锛屽墠
4 s
鍐呰川鐐圭殑鍔犻�熴�佸噺閫熻繍鍔ㄨ繃绋嬪瓨鍦ㄥ绉版�э紝鍏朵綅绉讳竴鐩翠负姝ｏ紝鏁?/p>
B
閿欒锛?/p>
1 s
鏈拰
3 s