ÌâÄ¿ÄÚÈÝ
ijУÎïÀíÐËȤС×éÀûÓÃÈçͼ¼×ËùʾµÄ×°ÖýøÐС°²âÁ¿Ð¡³µºÍľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý¡±µÄʵÑ飮ʵÑéÖÐͨ¹ýÐü¹Ò²»Í¬µÄÖØÎÈÃС³µ×öÔȱäËÙÖ±ÏßÔ˶¯£¬´òÏÂÈô¸ÉÌõÖ½´ø£¬¾Êý¾Ý´¦ÀíÀ´ÇóС³µºÍľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý¦Ì£®¾ßÌå²½ÖèÈçÏ£ºa¡¢×¼±¸²»Í¬ÖÊÁ¿µÄ¹³ÂëÈô¸É£¬³äµ±ÖØÎ
b¡¢°´Í¼Ê¾Á¬½ÓºÃʵÑé×°Ö㬱£³Ö³¤Ä¾°åˮƽ£¬µ÷ÕûϸÏßÓëľ°åƽÐУ»
c¡¢±£³ÖС³µµÄÖÊÁ¿²»±ä£¬Ðü¹ÒÊʵ±ÖÊÁ¿µÄÖØÎ´ø¶¯Ð¡³µÓɾ²Ö¹¿ªÊ¼Ô˶¯£»
d¡¢¼Ç¼ÏàÓ¦ÖØÎïµÄÖÊÁ¿£¬È¡ÏÂÖ½´ø²¢±àºÅ£®È»ºóÔÙÖظ´c¡¢d²½Ö裻
e¡¢ÀûÓôò³öµÄÈô¸ÉÌõºÏÊʵÄÖ½´ø£¬½øÐÐÊý¾Ý´¦Àí£®
£¨1£©±¾ÊµÑéÖÐÒÔС³µÎªÑо¿¶ÔÏóÀ´²âÁ¿¦Ì£¬ÔòÐèҪС³µÖÊÁ¿M ºÍÖØÎïÖÊÁ¿mÖ®¼äÂú×ãM
£¨2£©ÔÚÂú×ã¢ÙµÄÌõ¼þÏ£¬ÀûÓòâµÃµÄС³µµÄ¼ÓËÙ¶ÈaºÍÏàÓ¦µÄÖØÎïÖØÁ¦mg£¬¶¨ÐÔ»³öa-mgͼÏó£®
£¨3£©ÈôÒÑ֪ͼÏóµÄбÂÊΪk£¬ºá½Ø¾àΪb£¬Ôò¦Ì=
·ÖÎö£ºÎªÁËʹÖØÎïµÄÖØÁ¦µÈÓÚϸÉþµÄÀÁ¦£¬ÔòС³µµÄÖÊÁ¿MÓ¦Ô¶´óÓÚÖØÎïµÄÖÊÁ¿m£®¶ÔС³µ·ÖÎö£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨Âɵóö¼ÓËÙ¶ÈÓëmgµÄ±í´ïʽ£¬½áºÏͼÏßµÄбÂʺͺáÖá½Ø¾àÇó³ö¶¯Ä¦²ÁÒòÊýµÄ´óС£®
½â´ð£º½â£º£¨1£©ÎªÁËʹÖØÎïµÄÖØÁ¦µÈÓÚϸÉþµÄÀÁ¦£¬ÔòС³µµÄÖÊÁ¿MÓ¦Ô¶´óÓÚÖØÎïµÄÖÊÁ¿m£®
£¨2¡¢3£©¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨Âɵã¬Ð¡³µµÄ¼ÓËÙ¶Èa=
=
-¦Ìg£®
ÒòΪͼÏßµÄбÂÊΪk£¬Ôòk=
£¬ºá½Ø¾àΪb£¬Ôò
-¦Ìg=0£¬½âµÃ¦Ì=
£®a-mgͼÏßÈçͼËùʾ£®
¹Ê´ð°¸Îª£º£¨1£©Ô¶´óÓÚ£¬£¨2£©ÈçͼËùʾ£¬£¨3£©
£®
£¨2¡¢3£©¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨Âɵã¬Ð¡³µµÄ¼ÓËÙ¶Èa=
F-¦ÌMg |
M |
mg |
M |
ÒòΪͼÏßµÄбÂÊΪk£¬Ôòk=
1 |
M |
b |
M |
kb |
g |
¹Ê´ð°¸Îª£º£¨1£©Ô¶´óÓÚ£¬£¨2£©ÈçͼËùʾ£¬£¨3£©
kb |
g |
µãÆÀ£º¶ÔÓÚͼÏóÎÊÌ⣬¹Ø¼üͨ¹ýÎïÀíѧ¹æÂɵóöÁ½¸öÎïÀíÁ¿Ö®¼äµÄ¹Øϵʽ£¬½áºÏͼÏßµÃ֪бÂʺͽؾà±íʾµÄº¬Ò壮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿