涔犻
5
5.1
閫夋嫨棰?/p>
(1)
涓�鐗╀綋浣滅畝璋愭尟鍔紝鎸姩鏂圭▼涓?/p>
)
2
cos(
飦?
飦?/p>
飥?
飥?/p>
t
A
x
锛屽垯璇ョ墿浣撳湪
0
飥?/p>
t
鏃?
鍒荤殑鍔ㄨ兘涓?/p>
8
/
T
t
飥?/p>
锛?/p>
T
涓烘尟鍔ㄥ懆鏈燂級鏃跺埢鐨勫姩鑳戒箣姣斾负锛?/p>
(A)1
锛?/p>
4
锛?/p>
B
锛?/p>
1
锛?/p>
2
锛?/p>
C
锛?/p>
1
锛?/p>
1
(D) 2
锛?/p>
1
[
绛旀锛?/p>
D]
(2)
寮圭哀鎸瓙鍦ㄥ厜婊戞按骞抽潰涓婁綔绠�璋愭尟鍔ㄦ椂锛屽脊鎬у姏鍦ㄥ崐涓懆鏈熷唴鎵�浣滅殑鍔熶负
(A)kA
2
(B) kA
2
/2
(C) kA
2
//4
(D)0
[
绛旀锛?/p>
D]
(3)
璋愭尟鍔ㄨ繃绋嬩腑锛屽姩鑳藉拰鍔胯兘鐩哥瓑鐨勪綅缃殑浣嶇Щ绛変簬
(A)
4
A
飩?
(B)
2
A
飩?/p>
(C)
2
3
A
飩?
(D)
2
2
A
飩?/p>
[
绛旀锛?/p>
D]
5.2
濉┖棰?/p>
(1)
涓�璐ㄧ偣鍦?/p>
X
杞翠笂浣滅畝璋愭尟鍔紝鎸箙
A
锛?/p>
4cm
锛屽懆鏈?/p>
T
锛?/p>
2s
锛屽叾骞宠 浣嶇疆鍙栦綔鍧?/p>
鏍囧師鐐广�傝嫢
t
锛?/p>
0
鏃惰川鐐圭涓�娆￠�氳繃
x
锛濓紞
2cm
澶勪笖鍚?/p>
X
杞磋礋鏂瑰悜杩愬姩锛屽垯璐ㄧ偣绗?/p>
浜屾閫氳繃
x
锛濓紞
2cm
澶勭殑鏃跺埢涓?/p>
____s
銆?/p>
[
绛旀锛?
2
3
s
]
(2)
涓�姘村钩寮圭哀绠�璋愭尟瀛愮殑鎸姩鏇茬嚎濡傞
5.2(2)
鍥炬墍绀恒�傛尟瀛愬湪浣嶇Щ涓洪浂锛岄�熷害涓?/p>
锛?/p>
飦?/p>
A
銆佸姞閫熷害涓洪浂鍜屽脊鎬у姏涓洪浂鐨勭姸鎬侊紝瀵瑰簲浜庢洸绾夸笂鐨?/p>
____________
鐐广�傛尟瀛?/p>
澶勫湪浣嶇Щ鐨勭粷瀵瑰�间负
A
銆?/p>
閫熷害涓洪浂銆?/p>
鍔犻�熷害涓猴紞
飦?/p>
2
A
鍜屽脊鎬у姏涓猴紞
KA
鐨勭姸鎬侊紝鍒?/p>
瀵瑰簲鏇茬嚎涓婄殑
____________
鐐广�?/p>
棰?/p>
5.2(2)
鍥?/p>
[
绛旀锛?/p>
b
銆?/p>
f
锛?/p>
a
銆?/p>
e]
(3)
涓�璐ㄧ偣娌?/p>
x
杞翠綔绠�璋愭尟鍔紝鎸姩鑼冨洿鐨勪腑蹇冪偣涓?/p>
x
杞寸殑鍘熺偣锛屽凡鐭ュ懆鏈熶负
T
锛?/p>
鎸箙涓?/p>
A
銆?/p>