10.2
婊戣疆鍙婂叾搴旂敤
1锛庡畾婊戣疆瀹炶川鏄痏____鏉犳潌锛屼娇鐢ㄥ畾婊戣疆鍙互鏀瑰彉________锛屼絾瀹冧笉鑳絖______銆?/p>
2锛庡姩婊戣疆瀹炶川鏄痏_____________鐨勬潬鏉嗭紝浣跨敤鍔ㄦ粦杞彲浠______鍔涳紝浣哶______鏀瑰彉鍔涚殑鏂?/p>
鍚戙�?/p>
3锛庡鍥炬墍绀虹殑鐢层�佷箼涓や釜瑁呯疆涓悇
浣跨敤浜嗕竴涓粦杞�?/p>
鍏朵腑鐢插浘涓殑婊戣疆鏄痏____婊戣疆锛屼箼鍥?/p>
涓殑婊戣疆鏄痏____婊戣疆銆?/p>
4
锛庣敤涓�涓畾婊戣疆鍜屼竴涓姩婊戣疆缁勬垚鐨勬粦杞粍鎻愬崌閲嶇墿鏃讹紝浜哄缁冲瓙鐨勬媺鍔涙槸
70 N
锛屽垯鍙寑閫?/p>
鎻愯捣
_____N
鎴?/p>
_____N
鐨勯噸鐗┿�?/p>
5锛庡鍥炬墍绀猴紝鏈夊洓涓?
婊戣疆缁勶紝鑻ュ垎鍒敤鏉ユ妸60
N鐨勯噸鐗╂彁璧枫�傚湪鍔ㄦ粦杞�佺怀
閲嶅拰鎽╂摝涓嶈鐨勬儏鍐典笅锛屽垯
F
1
=_____N锛?/p>
F
2
=_____N锛?/p>
F
3
=_____N锛?/p>
F
4
=___
__N銆?/p>
6
鍊熷姪绠�鍗曟満姊板皢閲嶇墿鎻愬崌锛岃嫢涓嶈婊戣疆閲嶉噺鍙婃懇鎿︼紝浠ヤ笅瑁呯疆鏈�鐪佸姏鐨勬槸锛?/p>
锛?/p>
A
B C
D
7.
灏忔潕鐨勮川閲忎负
50
鍗冨厠锛屽彲浠ヤ妇璧?/p>
8
0
鍗冨厠鐨勬潬閾冿紱灏忚儢鐨勮川閲忎负
70
鍗冨厠锛屽彲浠ヤ妇璧?/p>
60
鍗冨厠