ÌâÄ¿ÄÚÈÝ
B£®(Ñ¡ÐÞÄ£¿é3-4)(12·Ö)
£¨1£©Ò»ÁÐÑØ×ÅxÖáÕý·½Ïò´«²¥µÄºá²¨£¬ÔÚt=0ʱ¿ÌµÄ²¨ÐÎÈçͼ¼×Ëùʾ¡£Í¼¼×ÖÐijÖʵãµÄÕñ¶¯Í¼ÏóÈçͼÒÒËùʾ¡£ÖʵãNµÄÕñ·ùÊÇ m£¬Õñ¶¯ÖÜÆÚΪ s£¬Í¼ÒÒ±íʾÖʵã (´ÓÖʵãK¡¢L¡¢M¡¢NÖÐÑ¡Ìî)µÄÕñ¶¯Í¼Ï󡣸ò¨µÄ²¨ËÙΪ m£¯s¡£
£¨2£©¹ßÐÔϵSÖÐÓÐÒ»±ß³¤ÎªlµÄÕý·½ÐÎ(ÈçͼAËùʾ)£¬´ÓÏà¶ÔSϵÑØx·½ÏòÒÔ½Ó½ü¹âËÙÔÈËÙ·ÉÐеķÉÐÐÆ÷ÉϲâµÃ¸ÃÕý·½ÐεÄͼÏóÊÇ ¡£
£¨3£©ÃèÊö¼òгÔ˶¯ÌØÕ÷µÄ¹«Ê½ÊÇx£½¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡£×ÔÓÉÏÂÂäµÄÀºÇò»ºµØÃæ·´µ¯ºóÉÏÉýÓÖÂäÏ¡£Èô²»¿¼ÂÇ¿ÕÆø×èÁ¦¼°ÔÚµØÃæ·´µ¯Ê±µÄÄÜÁ¿Ëðʧ£¬´ËÔ˶¯¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ (Ìî¡°ÊÇ¡±»ò¡°²»ÊÇ¡±)¼òгÔ˶¯¡£
£¨1£©£»£»£»
£¨2£©C
£¨3£©£»²»ÊÇ
½âÎö
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿