ÌâÄ¿ÄÚÈÝ
![](http://thumb.1010pic.com/pic3/upload/images/201310/57/364ed381.png)
a |
3 |
£¨1£©Çóľ¿éÇ¡ºÃÍêÈ«½þûˮÖÐʱѹÁ¦Fm
£¨2£©ÔÚF´ÓOÔöÖÁFm¹ý³ÌÖУ¬Ä¾¿é½þûÔÚË®ÖеÄÉî¶Èx´Ó
a |
3 |
£¨3£©½«F¡¢xµÄº¯Êý¹ØϵͼÏó»ÔÚÏàÓ¦µÄ×ø±êϵÖУ¬²¢±ê³öÁ½¶ËµãµÄºá¡¢×Ý×ø±ê£®
·ÖÎö£º£¨1£©µ±×÷ÓÃÔÚľ¿éÉϵÄѹÁ¦Îª0ʱ£¬Ä¾¿éÊܵ½µÄ¸¡Á¦µÈÓÚľ¿éµÄÖØÁ¦£»Ä¾¿éÇ¡ºÃÍêÈ«½þûˮÖÐʱ£¬¶Ôľ¿é½øÐÐÊÜÁ¦·ÖÎö¿ÉµÃ£¬Ä¾¿éÊܵ½µÄ¸¡Á¦µÈÓÚľ¿éµÄÖØÁ¦ºÍѹÁ¦µÄºÏÁ¦£¬¾Ý´ËÇó³öľ¿éÇ¡ºÃÍêÈ«½þûˮÖÐʱѹÁ¦Fm£»
£¨2£©¸ù¾Ýľ¿éÊܵ½µÄ¸¡Á¦µÈÓÚľ¿éµÄÖØÁ¦ºÍѹÁ¦µÄºÏÁ¦±íʾ³öFÓëx¼äµÄº¯Êý¹Øϵʽ£»
£¨3£©¸ù¾ÝÌâÒâ¿ÉÖª£¬µ±Ä¾¿é¾²Ö¹½þÈëË®µÄÉî¶ÈΪ
¿ÉÖªÆðµã×ø±ê£»µ±Ä¾¿é½þÈëÉî¶ÈΪaʱ£¬×Ý×ø±êµÈÓÚľ¿éÇ¡ºÃÍêÈ«½þûˮÖÐʱѹÁ¦Fm£®
£¨2£©¸ù¾Ýľ¿éÊܵ½µÄ¸¡Á¦µÈÓÚľ¿éµÄÖØÁ¦ºÍѹÁ¦µÄºÏÁ¦±íʾ³öFÓëx¼äµÄº¯Êý¹Øϵʽ£»
£¨3£©¸ù¾ÝÌâÒâ¿ÉÖª£¬µ±Ä¾¿é¾²Ö¹½þÈëË®µÄÉî¶ÈΪ
a |
3 |
½â´ð£º´ð£º£¨1£©F=0ʱ£¬F¸¡=G£¬G=¦Ñ
a¡Áa2g=
¦Ña3g£»
F=Fmʱ£¬F¸¡=G+Fm£¬Fm=F¸¡-G=¦Ña3g-
¦Ña3g=
¦Ña3g£»
£¨2£©FΪһ°ãֵʱ£¬F+G=F¸¡£¬F=F¸¡-G£¬¼´£ºF=¦Ña2g¡Áx-
¦Ña3g£»
£¨3£©Ï߶ÎÆðµã×ø±ê£¨
a£¬0£©£¬ÖÕµã×ø±ê£¨a£¬
¦Ña3g£©£®ÈçͼËùʾ£º
![](http://thumb.1010pic.com/pic3/upload/images/201310/122/65d68fb6.png)
1 |
3 |
1 |
3 |
F=Fmʱ£¬F¸¡=G+Fm£¬Fm=F¸¡-G=¦Ña3g-
1 |
3 |
2 |
3 |
£¨2£©FΪһ°ãֵʱ£¬F+G=F¸¡£¬F=F¸¡-G£¬¼´£ºF=¦Ña2g¡Áx-
1 |
3 |
£¨3£©Ï߶ÎÆðµã×ø±ê£¨
1 |
3 |
2 |
3 |
![](http://thumb.1010pic.com/pic3/upload/images/201310/122/65d68fb6.png)
µãÆÀ£º±¾Ì⿼²éÁËѧÉú¶Ô°¢»ùÃ×µÂÔÀí¡¢Æ¯¸¡Ìõ¼þ¡¢Í¬Ò»Ö±ÏßÉÏÁ¦µÄºÏ³ÉµÄÕÆÎÕºÍÔËÓã¬ÖªÊ¶µã¶à¡¢×ÛºÏÐÔÇ¿£¬ÊÇÒ»µÀÁ¦Ñ§×ÛºÏÌ⣬ҪÇóÁé»îÔËÓø÷¸ö¹«Ê½£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿