![](http://thumb.1010pic.com/pic3/upload/images/201201/19/da832e1d.png)
£¨2011?̨ÖÝÄ£Ä⣩ΪÁ˲âÁ¿Á½¸öÖÊÁ¿²»µÈɳ´üµÄÖÊÁ¿£¬ÓÉÓÚûÓпÉÖ±½Ó²âÁ¿µÄ¹¤¾ß£¨ÈçÌìƽ¡¢µ¯»É³ÓµÈ£©£¬Ä³ÊµÑéС×éÓ¦ÓÃÏÂÁÐÆ÷²Ä²âÁ¿£ºÇáÖʶ¨»¬ÂÖ£¨ÖÊÁ¿ºÍĦ²Á¿ÉºöÂÔ£©¡¢Ò»Ì××ÜÖÊÁ¿Îªm=0.5kgíÀÂ룬ϸÏß¡¢Ã׳ߡ¢Ãë±í£¬ËûÃǸù¾ÝËùѧµÄÎïÀí֪ʶ¸Ä±äʵÑéÌõ¼þ½øÐжà´Î²âÁ¿£¬Ñ¡ÔñºÏÊʵıäÁ¿µÃµ½ÏßÐÔ¹Øϵ£¬×÷³öͼÏß²¢¸ù¾ÝͼÏßµÄбÂʺͽؾàÇó³öɳ´üµÄÖÊÁ¿£¨gÈ¡10m/s
2£©£®¾ßÌå²Ù×÷ÈçÏ£º
£¨1£©ÊµÑé×°ÖÃÈçͼËùʾ£¬Éè×óÓÒÁ½±ßɳ´üµÄÖÊÁ¿·Ö±ðΪm
2¡¢m
1£»
£¨2£©´ÓmÖÐÈ¡³öÖÊÁ¿Îª¡÷mµÄíÀÂë·ÅÔÚÓÒ±ßɳ´üÖУ¨Ê£ÓàíÀÂ붼·ÅÔÚ×ó±ßɳ´üÖУ¬·¢ÏÖÖÊÁ¿Îªm
1µÄɳ´üϽµ£¬ÖÊÁ¿Îªm
2µÄɳ´üÉÏÉý£¨ÖÊÁ¿Îªm
1µÄɳ´üϽµ¹ý³ÌδÓëÆäËûÎïÌåÏàÅö£©£»
£¨3£©ÓÃÃ׳߲â³öÖÊÁ¿Îªm
1µÄɳ´ü´Ó¾²Ö¹¿ªÊ¼Ï½µµÄ¾àÀëh£¬ÓÃÃë±í²â³öÖÊÁ¿Îªm
1µÄɳ´üϽµ¾àÀëhËù¶ÔÓ¦µÄʱ¼ät£¬Ôò¿ÉÇóɳ´üµÄ¼ÓËٶȴóСΪa=
£»
£¨4£©¸Ä±äÓÒ±ßíÀÂëµÄÖÊÁ¿¡÷m£¬²âÁ¿ÏàÓ¦µÄ¼ÓËÙ¶Èa£¬µÃµ½¶à×é¡÷m¼°aµÄÊý¾Ý£¬×÷³ö¡°a¡«¡÷m¡±Í¼Ïߣ»
£¨5£©ÈôÇóµÃͼÏßµÄбÂÊk=4m/kg?s
2£¬½Ø¾àΪb=2m/s
2£¬É³´üµÄÖÊÁ¿m
1=
3
3
kg£¬m
2=
1.5
1.5
kg£®