ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿2019Äê12ÔÂ17ÈÕ£¬ÖйúµÚÒ»ËÒ¹ú²úº½Ä¸¡°É½¶«½¢¡±ÔÚº£ÄÏÈýÑǽ»¸¶Ê¹Óᣡ°É½¶«½¢¡±µÄ¼×°åÓÉˮƽ¼×°åºÍÉÏÇ̼װåÁ½²¿·Ö×é³É£¬ÀûÓÚ½¢ÔØ»ú»¬Ô¾Ê½Æð·É£¬ÈçͼËùʾ¡£Îª·½±ãÑо¿½¢ÔØ»úµÄÆð·É¹ý³Ì£¬½«¼×°å½üËÆΪÈçͼËùʾµÄ¹ìµÀ£ºË®Æ½¹ìµÀAB³¤L1=157.5m£¬Çãб¹ìµÀ¸ßh=6m£¬Ë®Æ½Í¶Ó°³¤L2=42.5m¡£×ÜÖÊÁ¿Îª3.0¡Á104kgµÄij½¢ÔØ»ú£¬´ÓAµãÒÔ36km/hµÄ³õËٶȳö·¢£¬µ½´ïBµãʱµÄËÙ¶ÈΪ288km/h£¬½øÈëÉÏÇ̼װåºó£¬¾0.5s´ÓCµãÆð·É¡£¸Ã½¢ÔØ»úÔÚÆð·É¹ý³ÌÖУ¬·¢¶¯»úµÄÍÆÁ¦ºãΪ8.0¡Á105N£¬ÔÚˮƽ¹ìµÀÉϵÄÔ˶¯ÊÓΪÔȱäËÙÖ±ÏßÔ˶¯£¬½¢ÔØ»úÊÓΪÖʵ㣬º½Ä¸¾²Ö¹²»¶¯¡£Çó½¢ÔØ»ú£º
(1)ÔÚˮƽ¹ìµÀÉÏÔ˶¯µÄ¼ÓËٶȴóС£»
(2)ÔÚˮƽ¹ìµÀÉÏÔ˶¯Ê±Êܵ½µÄƽ¾ù×èÁ¦´óС£»
(3)Õû¸öÆð·É½×¶Îƽ¾ùËٶȵĴóС£¨½á¹û±£ÁôÕûÊý£©¡£
¡¾´ð°¸¡¿(1)£»(2)N £»(3)m/s
¡¾½âÎö¡¿
£¨1£©¸ù¾ÝËÙ¶ÈλÒƹ«Ê½
½âµÃ
£¨2£©¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂɵÃ
½âµÃ
£¨3£©Aµ½CλÒÆ
ËùÓõÄʱ¼ä
ƽ¾ùËÙ¶È