ÖÊÁ¿ÎªmµÄ¸Ö°åÓëÖ±Á¢Çᵯ»ÉµÄÉ϶ËÁ¬½Ó£¬µ¯»É϶˹̶¨ÔÚµØÉÏ£¬Æ½ºâʱ£¬µ¯»ÉµÄѹËõÁ¿Îªx£¬ÈçͼËùʾ£¬Ò»Îï¿é´Ó¸Ö°åÕýÉÏ·½¾àÀëΪ3xµÄA´¦×ÔÓÉÂäÏ£¬´òÔÚ¸Ö°åÉϲ¢Á¢¿ÌÓë¸Ö°åÒ»ÆðÏòÏÂÔ˶¯£¬µ«²»Õ³Á¬£¬ËüÃǵ½´ï×îµÍµãºóÓÖÏòÉÏÔ˶¯£¬ÒÑÖªÎï¿éÖÊÁ¿Ò²Îªmʱ£¬ËüÃÇÇ¡Äܻص½Oµã£¬ÈôÎï¿éÖÊÁ¿Îª2m£¬ÈÔ´ÓA´¦×ÔÓÉÂäÏ£¬ÔòÎï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬»¹¾ßÓÐÏòÉϵÄËٶȣ¬ÇóÎï¿éÏòÉÏÔ˶¯µ½´ï×î¸ßµãOµãµÄ¾àÀ룮

¡¾´ð°¸¡¿·ÖÎö£º·ÖÎöÎïÌåµÄÔ˶¯¹ý³Ì£ºÎï¿éÏÈ×ÔÓÉÏÂÂ䣬»úеÄÜÊغ㣮Îï¿éÓë¸Ö°åÅöײʱ£¬ÒòÅöײʱ¼ä¼«¶Ì£¬ÏµÍ³ËùÊÜÍâÁ¦Ô¶Ð¡ÓÚÏ໥×÷ÓõÄÄÚÁ¦£¬×ñÊض¯Á¿Êغ㶨ÂÉ£®Åöײºó£¬µ¯»É¡¢Îï¿éÓë¸Ö°å×é³ÉµÄϵͳ»úеÄÜÊغ㣮ÓÉÌâÅöײºó£¬Îï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬´Ëʱµ¯»ÉµÄµ¯ÐÔÊÆÄÜÓëδÅöײʱÏàµÈ£®¸ù¾Ý¶¯Á¿Êغ㶨ÂÉ¡¢»úеÄÜÊغ㶨ÂɺÍÏàµÈµÄÌõ¼þ·Ö±ðÑо¿Îï¿éÖÊÁ¿ÎªmºÍ2mµÄÇé¿ö£¬ÔÙÇó½âÎï¿éÏòÉÏÔ˶¯µ½´ï×î¸ßµãOµãµÄ¾àÀ룮
½â´ð£º½â£ºÎï¿éÓë¸Ö°åÅöײʱµÄËÙ¶ÈÓÉ»úеÄÜÊغ㣬µÃ
                  ¢Ù
Éèv1±íʾÖÊÁ¿ÎªmµÄÎï¿é¸Ö°åÅöײºóÒ»ÆðÏòÏÂÔ˶¯µÄËٶȣ¬ÒòÅöײʱ¼ä¼«¶Ì£¬ÏµÍ³ËùÊÜÍâÁ¦Ô¶Ð¡ÓÚÏ໥×÷ÓõÄÄÚÁ¦£¬·ûºÏ¶¯Á¿Êغ㣬¹ÊÓÐ
mv=2mv1      ¢Ú
Éè¸ÕÅöÍêʱµ¯»ÉµÄµ¯ÐÔÊÆÄÜΪEp£¬µ±ËûÃÇÒ»Æð»Øµ½Oµãʱ£¬µ¯»ÉÎÞÐα䣬µ¯»ÉÊÆÄÜΪÁ㣬¸ù¾ÝÌâÒ⣬ÓÉ»úеÄÜÊغãµÃ   
         ¢Û
Éèv2±íʾÖÊÁ¿Îª2mµÄÎï¿éÓë¸Ö°åÅöºó¿ªÊ¼Ò»ÆðÏòÏÂÔ˶¯µÄËٶȣ¬Óɶ¯Á¿Êغ㣬ÔòÓÐ
   2mv=3mv2        ¢Ü
Éè¸ÕÅöÍêʱµ¯»ÉÊÆÄÜΪEp¡ä£¬ËüÃǻص½Oµãʱ£¬µ¯ÐÔÊÆÄÜΪÁ㣬µ«ËüÃÇÈÔ¼ÌÐøÏòÉÏÔ˶¯£¬Éè´ËʱËÙ¶ÈΪv2£¬ÔòÓÉ»úеÄÜÊغ㶨ÂɵÃ
       ¢Ý
ÔÚÉÏÊöÁ½ÖÖÇé¿öÏ£¬µ¯»ÉµÄ³õʼѹËõÁ¿¶¼ÊÇx£¬¹ÊÓÐEp¡ä=Ep     ¢Þ
µ±ÖÊÁ¿Îª2mµÄÎï¿éÓë¸Ö°åÒ»Æð»Øµ½Oµãʱ£¬µ¯»ÉµÄµ¯Á¦ÎªÁ㣬Îï¿éÓë¸Ö°åÖ»Êܵ½ÖØÁ¦µÄ×÷Ó㬼ÓËÙ¶ÈΪg£¬Ò»¹ýOµã£¬¸Ö°åÊܵ½µ¯»ÉÏòϵÄÀ­Á¦×÷Ó㬼ÓËٶȴóÓÚg£¬ÓÉÓÚÎï¿éÓë¸Ö°å²»Õ³Á¬£¬Îï¿é²»¿ÉÄÜÊܵ½¸Ö°åµÄÀ­Á¦£¬Æä¼ÓËÙ¶ÈÈÔΪg£¬·½ÏòÏòÏ£¬¹ÊÔÚOµãÎï¿éÓë¸Ö°å·ÖÀ룮·ÖÀëºó£¬Îï¿éÒÔËÙ¶ÈvÊúÖ±ÉÏÉý£¬ÓÉÊúÖ±ÉÏÅ××î´óλÒƹ«Ê½µÃ£¬¶ø
ËùÒÔÎï¿éÏòÉÏÔ˶¯µ½´ïµÄ×î¸ßµã¾àOµãµÄ¾àÀëh=£®
µãÆÀ£º´ËÌâÉæ¼°µÄÎïÀí¹ý³ÌÓÐËĸö£¬Óõ½µÄÎïÀí¹æÂɺ͹«Ê½ÓÐËĸö£¬Ëü½«¶¯Á¿ÊغãºÍ»úеÄÜÊغãÍêÃÀµØͳһÔÚÒ»Æ𣬽»ÌæʹÓ㬿ÉÒÔ˵ÊÇÒ»µÀ¿¼²é¿¼ÉúÄÜÁ¦µÄºÃÊÔÌ⣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÖÊÁ¿ÎªmµÄ¸Ö°åÓëÖ±Á¢Çᵯ»ÉµÄÉ϶ËÁ¬½Ó£¬µ¯»É϶˹̶¨ÔÚµØÉÏ£®Æ½ºâʱ£¬µ¯»ÉµÄѹËõÁ¿ÎªX0£¬ÈçͼËùʾ£®Îï¿é´Ó¸Ö°åÕý¶Ô¾àÀëΪ3X0µÄA´¦×ÔÓÉÂäÏ£¬´òÔÚ¸Ö°åÉϲ¢Á¢¿ÌÓë¸Ö°åÒ»ÆðÏòÏÂÔ˶¯£¬µ«²»Õ³Á¬£¬ËüÃǵ½´ï×îµÍµãºóÓÖÏòÉÏÔ˶¯£®ÒÑÖªÎïÌåÖÊÁ¿Ò²Îªmʱ£¬ËüÃÇÇ¡Äܻص½Oµã£¬Çó£º
£¨1£©Îï¿éÓë¸Ö°åÅöºóµÄËÙ¶Èv£»
£¨2£©µ¯»É±»Ñ¹ËõX0ʱµÄµ¯ÐÔÊÆÄÜEp£»
£¨3£©ÈôÎï¿éÖÊÁ¿Îª2m£¬ÈÔ´ÓA´¦×ÔÓÉÂäÏ£¬ÔòÎï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬»¹¾ßÓÐÏòÉϵÄËٶȣ¬Îï¿éÏòÉÏÔ˶¯µ½×î¸ßµãÓëOµãµÄ¾àÀ룮

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÖÊÁ¿ÎªmµÄ¸Ö°åÓëÖ±Á¢Çᵯ»ÉµÄÉ϶ËÁ¬½Ó£¬µ¯»É϶˹̶¨ÔÚµØÉÏ£¬Æ½ºâʱ£¬µ¯»ÉµÄѹËõÁ¿Îªx0£¬ÈçͼËùʾ£¬Ò»Îï¿é´Ó¸Ö°åÕýÉÏ·½¾àÀëΪ3x0µÄA´¦×ÔÓÉÂäÏ£¬´òÔÚ¸Ö°åÉϲ¢Á¢¿ÌÓë¸Ö°åÒ»ÆðÏòÏÂÔ˶¯£¬µ«²»Õ³Á¬£¬ËüÃǵ½´ï×îµÍµãºóÓÖÏòÉÏÔ˶¯£¬ÒÑÖªÎï¿éÖÊÁ¿Ò²Îªmʱ£¬ËüÃÇÇ¡Äܻص½Oµã£¬ÈôÎï¿éÖÊÁ¿Îª2m£¬ÈÔ´ÓA´¦×ÔÓÉÂäÏ£¬ÔòÎï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬»¹¾ßÓÐÏòÉϵÄËٶȣ¬ÇóÎï¿éÏòÉÏÔ˶¯µ½´ï×î¸ßµãOµãµÄ¾àÀ룮

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÖÊÁ¿ÎªmµÄ¸Ö°åÓëÖ±Á¢Çᵯ»ÉµÄÉ϶ËÁ¬½Ó£¬µ¯»É϶˹̶¨ÔÚµØÉÏ.ƽºâʱ£¬µ¯»ÉµÄѹËõÁ¿Îªx0£¬ÈçͼËùʾ.Ò»Îï¿é´Ó¸Ö°åÕýÉÏ·½¾àÀëΪ3x0µÄA´¦×ÔÓÉÂäÏ£¬´òÔÚ¸Ö°åÉϲ¢Á¢¿ÌÓë¸Ö°åÒ»ÆðÏòÏÂÔ˶¯£¬µ«²»ð¤Á¬.ËüÃǵ½´ï×îµÍµãºóÓÖÏòÉÏÔ˶¯.ÒÑÖªÎï¿éÖÊÁ¿Ò²Îªmʱ£¬ËüÃÇÇ¡Äܻص½Oµã.ÈôÎï¿éÖÊÁ¿Îª2m£¬ÈÔ´ÓA´¦×ÔÓÉÂäÏ£¬ÔòÎï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬»¹¾ßÓÐÏòÉϵÄËÙ¶È.ÇóÎï¿éÏòÉÏÔ˶¯µ½´ïµÄ×î¸ßµãÓëOµãµÄ¾àÀë.

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÖÊÁ¿ÎªmµÄ¸Ö°åÓëÖ±Á¢Çᵯ»ÉµÄÉ϶ËÁ¬½Ó£¬µ¯»É϶˹̶¨ÔÚµØÉÏ£®Æ½ºâʱ£¬µ¯»ÉµÄѹËõÁ¿Îªx0£¬ÈçͼËùʾ£®Ò»Îï¿é´Ó¸Ö°åÕýÉÏ·½¾àÀëΪ3x0µÄA´¦×ÔÓÉÂäÏ£¬´òÔÚ¸Ö°åÉϲ¢Á¢¿ÌÓë¸Ö°åÒ»ÆðÏòÏÂÔ˶¯£¬µ«²»Õ³Á¬£®ËüÃǵ½´ï×îµÍµãºóÓÖÏòÉÏÔ˶¯£®ÒÑÖªÎï¿éÖÊÁ¿Ò²Îªmʱ£¬ËüÃÇÇ¡Äܻص½Oµã£®ÈôÎï¿éÖÊÁ¿Îª2m£¬ÈÔ´ÓA´¦×ÔÓÉÂäÏ£¬ÔòÎï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬»¹¾ßÓÐÏòÉϵÄËٶȣ®ÇóÎï¿éÏòÉÏÔ˶¯µ½´ïµÄ×î¸ßµãÓëOµãµÄ¾àÀ룿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÖÊÁ¿ÎªmµÄ¸Ö°åÓëÖ±Á¢Çᵯ»ÉµÄÉ϶ËÁ¬½Ó£¬µ¯»É϶˹̶¨ÔÚµØÉÏ£®Æ½ºâʱ£¬µ¯»ÉµÄѹËõÁ¿Îªx0£¬ÈçͼËùʾ£®Ò»Îï¿é´Ó¸Ö°åÕýÉÏ·½¾àÀëΪ3x0µÄA´¦×ÔÓÉÂäÏ£¬´òÔÚ¸Ö°åÉϲ¢Á¢¿ÌÓë¸Ö°åÒ»ÆðÏòÏÂÔ˶¯£¬µ«²»Õ³Á¬£®ËüÃǵ½´ï×îµÍµãºóÓÖÏòÉÏÔ˶¯£®ÒÑÖªÎï¿éÖÊÁ¿Ò²Îªmʱ£¬ËüÃÇÇ¡Äܻص½Oµã£®ÈôÎï¿éÖÊÁ¿Îª2m£¬ÈÔ´ÓA´¦×ÔÓÉÂäÏ£¬ÔòÎï¿éÓë¸Ö°å»Øµ½Oµãʱ£¬»¹¾ßÓÐÏòÉϵÄËٶȣ®ÇóÎï¿éÏòÉÏÔ˶¯µ½´ïµÄ×î¸ßµãÓëOµãµÄ¾àÀ룿

 

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸