Question

£¨18·Ö£©ÈçͼËùʾ£¬Ò»¸ö´øÕýµçµÄÁ£×ÓÑشų¡±ß½ç´ÓAµãÉäÈë×ó²à´Å³¡£¬Á£×ÓÖÊÁ¿Îªm¡¢µçºÉÁ¿Îªq£¬ÆäÖÐÇøÓò¢ñ¡¢¢óÄÚÊÇ´¹Ö±Ö½ÃæÏòÍâµÄÔÈÇ¿´Å³¡£¬×ó±ßÇøÓò×ã¹»´ó£¬ÓÒ±ßÇøÓò¿í¶ÈΪ1.3d£¬´Å¸ÐӦǿ¶È´óС¾ùΪB£¬ÇøÓò¢òÊÇÁ½´Å³¡¼äµÄÎÞ³¡Çø£¬Á½ÌõÊúÖ±ÐéÏßÊÇÆä±ß½çÏߣ¬¿í¶ÈΪd£»Á£×Ó´Ó×ó±ß½çÏßAµãÉäÈë´Å³¡ºó£¬¾­¹ý¢ñ¡¢¢ò¡¢¢óÇøÓòºóÄܻص½Aµã£¬ÈôÁ£×ÓÔÚ×ó²à´Å³¡Öеİ뾶Ϊd£¬Õû¸ö×°ÖÃÔÚÕæ¿ÕÖУ¬²»¼ÆÁ£×ÓµÄÖØÁ¦¡£

£¨1£©Çó£ºÁ£×Ó´ÓAµãÉä³öµ½»Øµ½Aµã¾­ÀúµÄʱ¼ät£»
£¨2£©ÈôÔÚÇøÓò¢òÄÚ¼ÓһˮƽÏòÓÒµÄÔÈÇ¿µç³¡£¬Á£×ÓÈÔÄܻص½Aµã£¬Ç󣺵糡ǿ¶ÈE.

Answer 1

£¨1£© t£½    £¨2£© £¨n=4¡¢5¡¢6¡¢¡­¡­£©

ÊÔÌâ·ÖÎö£º£¨1£©ÒòÁ£×Ó´ÓAµã³ö·¢£¬¾­¹ý¢ñ¡¢¢ò¡¢¢óÇøÓòºóÄܻص½Aµã£¬ÓɶԳÆÐÔ¿ÉÖªÁ£×Ó×öÔ²ÖÜÔ˶¯µÄ°ë¾¶Îªr£½d
ÓÉBqv£½m   £¨2·Ö£© 
µÃv£½   £¨2·Ö£©
ËùÒÔÔËÐÐʱ¼äΪt£½ £¨2·Ö£©

£¨2£©ÉèÔÚÇøÓò¢òÄÚ¼ÓËÙµÄÁ£×Óµ½¢óÇøµÄËÙ¶ÈΪv₁
Óɶ¯Äܶ¨Àí£ºqEd£½m£­mv² £¨2·Ö£©
ÉèÔÚÇøÓò¢óÄÚÁ£×Ó×öÔ²ÖÜÔ˶¯µÄ°ë¾¶Îªr£¬·ÖÎöÁ£×ÓÔ˶¯µÄ¹ì¼££¬ÈçͼËùʾ£¬
Á£×ÓÑذ뾶ΪdµÄ°ëÔ²Ô˶¯ÖÁ¢òÇø£¬¾­µç³¡¼ÓËÙºó£¬ÔÚ¢óÇøÓÖ¾­°ëÔ²Ô˶¯·µ»Øµç³¡¼õËÙµ½±ß½çÏßµÄAµã£¬´ËʱÉèAN=x£¬Ôò£º   £¨1·Ö£©
´Ëºó£¬Á£×Óÿ¾­ÀúÒ»´Î¡°»ØÐý¡±£¬Á£×ÓÑر߽çÏߵľàÀë¾Í¼õСx£¬¾­¹ýn´Î»ØÐýºóÄÜ·µ»ØAµã¡£
±ØÐëÂú×㣺 £¨n=1¡¢2¡¢3¡¢¡­¡­£© £¨3·Ö£©
ÇóµÃ£º£¨n=1¡¢2¡¢3¡¢¡­¡­£© £¨1·Ö£©
°ë¾¶rÌ«´ó¿ÉÄÜ´ÓÓұ߷ɳö´Å³¡£¬ËùÒÔ±ØÐëÂú×ãÏÂÃæÌõ¼þ£º
ÓÉ£¬µÃ£º  ¼´£»¡­¡­ £¨3·Ö£©
Óɹ«Ê½£ºBqv₁£½m£»µÃ£º£¨n=4¡¢5¡¢6¡¢¡­¡­£© £¨2·Ö£©
´úÈëµÃ£º£¨n=4¡¢5¡¢6¡¢¡­¡­£© £¨1·Ö£©