瀛︾敓鍋氶鍓嶈鍏堝洖绛斾互涓嬮棶棰?/p>
闂
1
锛?/p>
鐢辩偣锛?/p>
____________
锛夌殑杩愬姩浜х敓鐨勫嚑浣曢棶棰樼О涓哄姩鐐归棶棰橈紟
闂
2
锛?/p>
鍔ㄧ偣闂鐨勮В鍐虫柟娉曪細鈶犵爺绌?/p>
_____________
锛?/p>
_______
锛涒憽鍒嗘瀽
___________
锛屽垎
娈碉紱鈶㈣〃杈?/p>
_______
锛屽缓绛夊紡锛?/p>
涓夎褰㈠叏绛変箣鍔ㄧ偣闂锛堟鏋讹級
锛堜汉鏁欑増锛?/p>
涓�銆佸崟閫夐
(
鍏?/p>
11
閬擄紝姣忛亾
9
鍒?/p>
)
1.
宸茬煡锛氬鍥撅紝
AB=16cm
锛屽姩鐐?/p>
P
浠庣偣
A
鍑哄彂锛屾部
AB
浠?/p>
2cm/s
鐨勯�熷害鍚戠偣
B
杩愬姩锛庤鐐?/p>
P
杩愬姩鐨勬椂闂翠负
t
绉掞紝璇疯В绛斾笅鍒楅棶棰橈細
锛?/p>
1
锛夎繍
鍔ㄧ姸鎬佸垎鏋愬浘濡備笅锛?/p>
绌虹己澶勪緷娆℃墍
濉纭殑鏄?/p>
(
)
A.鈶?cm/s
锛涒憽
A
锛涒憿
B
B.鈶?cm/s
锛涒憽
B
锛涒憿
A
C.鈶?cm/s
锛涒憽
A
锛涒憿
B
D.鈶?cm/s
锛?/p>
鈶?/p>
A
锛涒憿
P
绛旀锛?/p>
C
瑙ｉ鎬濊矾锛?
璇曢闅惧害锛?/p>
涓夐鏄?/p>
鐭ヨ瘑鐐癸細
鍔ㄧ偣闂
2.
锛堜笂鎺ョ
1
棰橈級
锛?/p>
2
锛夌敤鍚?/p>
t
鐨勫紡瀛愯〃杈剧嚎娈?/p>
AP
锛?/p>
PB
闀垮垎鍒负
(
)cm
锛?/p>
A.t
锛?/p>
16-t
B.t
锛?/p>
16-2t
C.2t
锛?/p>
16-t
D.2t
锛?/p>
16-2t
绛旀锛?/p>
D