ÌâÄ¿ÄÚÈÝ

³Å¸ËÌø¸ßÊÇÒ»Ïî¼¼ÊõÐÔºÜÇ¿µÄÌåÓýÔ˶¯£¬ÍêÕûµÄ¹ý³Ì¿ÉÒÔ¼ò»¯³ÉÈçͼ17ËùʾµÄÈý¸ö½×¶Î£º³Ö¸ËÖúÅÜ¡¢³Å¸ËÆðÌøÉÏÉý¡¢Ô½¸ËÏÂÂä¡£ÔÚµÚ¶þÊ®¾Å½ì±±¾©°ÂÔË»á±ÈÈüÖУ¬Éí¸ß1£®74mµÄ¶íÂÞ˹ŮÔ˶¯Ô±ÒÁÐÁ°ÍÒ®ÍÞÒÔ5.05mµÄ³É¼¨´òÆÆÊÀ½ç¼Í¼¡£ÉèÒÁÐÁ°ÍÒ®ÍÞ´Ó¾²Ö¹¿ªÊ¼ÒÔ¼ÓËÙ¶Èa=1.0m£¯s2¡£ÔȼÓËÙÖúÅÜ£¬ËÙ¶È´ïµ½¡±=8.0m£¯sʱ³Å¸ËÆðÌø£¬Ê¹ÖØÐÄÉý¸ßh1=4.20mºóÔ½¹ýºá¸Ë£¬¹ý¸ËʱµÄËٶȲ»¼Æ£¬¹ý¸Ëºó×ö×ÔÓÉÂäÌåÔ˶¯£¬ÖØÐÄϽµh2=4.05mʱÉíÌå½Ó´¥Èíµæ£¬´Ó½Ó´¥Èíµæµ½ËٶȼõΪÁãµÄʱ¼ät=0.90s¡£ÒÑÖªÒÁÐÁ°ÍÒ®ÍÞµÄÖÊÁ¿m=65kg£¬ÖØÁ¦¼ÓËÙ¶ÈgÈ¡10m£¯s2£¬²»¼Æ³Å¸ËµÄÖÊÁ¿ºÍ¿ÕÆøµÄ×èÁ¦¡£Çó£º

   £¨1£©ÒÁÐÁ°ÍÒ®ÍÞÆðÌøÇ°µÄÖúÅܾàÀ룻

   £¨2£©ÒÁÐÁ°ÍÒ®ÍÞÔÚ³Å¸ËÆðÌøÉÏÉý½×¶ÎÖÁÉÙÒª×öµÄ¹¦£»

 
   £¨3£©ÔÚÒÁÐÁ°ÍÒ®ÍÞ½Ó´¥Èíµæµ½ËٶȼõΪÁãµÄ¹ý³ÌÖУ¬Èíµæ¶ÔÔ˶¯Ô±Æ½¾ù×÷ÓÃÁ¦µÄ´óС¡£

 

 

   £¨1£©ÉèÖúÅܾàÀëΪs£¬ÓÉÔ˶¯Ñ§¹«Ê½¡­¡­¡­¡­2·Ö

½âµÃ¡­¡­¡­¡­¡­¡­2·Ö

   £¨2£©ÉèÔ˶¯Ô±ÔÚ³Å¸ËÆðÌøÉÏÉý½×¶ÎÖÁÉÙÒª×öµÄ¹¦ÎªW£¬Óɹ¦ÄܹØÏµÓÐ

¡­¡­¡­¡­¡­¡­3·Ö

½âµÃ£ºW=650J¡­¡­¡­¡­¡­¡­2·Ö

   £¨3£©Ô˶¯Ô±¹ý¸Ëºó×ö×ÔÓÉÂäÌåÔ˶¯£¬Éè½Ó´¥ÈíµæÊ±µÄËÙ¶ÈΪ£¬ÓÉÔ˶¯Ñ§¹«Ê½ÓÐ

¡­¡­¡­¡­¡­¡­¡­¡­2·Ö

ÉèÈíµæ¶ÔÔ˶¯Ô±µÄƽ¾ù×÷ÓÃÁ¦ÎªF£¬Óɶ¯Á¿¶¨ÀíµÃ¡­¡­¡­¡­3·Ö

½âµÃF=1300N¡­¡­¡­¡­¡­¡­2·Ö

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø