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楂樹腑鐗╃悊瀛︿範鏉愭枡
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涓撻
21
鍔涘瀹為獙
2
1.
銆?/p>
2014路
鍖椾含澶у闄勫睘涓娌冲崡鍒嗘牎楂樹笁绗竴娆℃湀鑰冦�?/p>
锛?/p>
6
鍒嗭級鏌愬悓瀛﹀湪鎺㈢┒鎽╂摝鍔涚殑瀹?/p>
楠屼腑閲囧彇浜嗗鍥炬墍绀虹殑鎿嶄綔锛屽皢涓�涓暱鏂逛綋鏈ㄥ潡鏀惧湪姘村钩妗岄潰涓婏紝鐒跺悗鐢ㄤ竴涓姏浼犳劅鍣ㄥ
鏈ㄥ潡鏂藉姞涓�涓按骞虫媺鍔?/p>
F
锛屽苟鐢ㄥ彟澶栦竴涓紶鎰熷櫒瀵规湪鍧楃殑杩愬姩鐘舵�佽繘琛岀洃娴嬶紝琛?/p>
1
鏄ス璁?/p>
褰曠殑瀹為獙鏁版嵁銆傛湪鍧楃殑閲嶅姏涓?/p>
10.00N
锛岄噸鍔涘姞閫熷害
g=9.80m/s
2
锛屾牴鎹〃鏍间腑鐨勬暟鎹洖绛斾笅
鍒楅棶棰橈紙绛旀淇濈暀
3
浣嶆湁鏁堟暟瀛楋級锛?/p>
锛?/p>
1
锛夋湪鍧椾笌妗岄潰闂寸殑鏈�澶ч潤鎽╂摝鍔?/p>
fm
F
涓�瀹氫笉灏忎簬
N
锛?/p>
锛?/p>
2
锛夋湪鍧椾笌妗岄潰闂寸殑鍔ㄦ懇鎿﹀洜鏁?/p>
飥?/p>
飦?/p>
锛?/p>
锛?/p>
3
锛夋湪鍧楀寑鍔犻�熻繍鍔ㄦ椂鍙楀埌鐨勬懇鎿﹀姏
f
F
=
N
銆?/p>