ÌâÄ¿ÄÚÈÝ
ÈçͼËùʾ£¬ÖÊÁ¿mA=1.OkgµÄÎï¿éA·ÅÔÚˮƽ¹Ì¶¨×ÀÃæÉÏ£¬ÓÉ¿ç¹ý¹â»¬Ð¡¶¨»¬ÂÖµÄÇáÉþÓëÖÊÁ¿mB=1.5kgµÄÎï¿éBÏàÁ¬¡£ÇáÉþÀֱʱÓÃÊÖÍÐסÎï¿éB£¬Ê¹Æä¾²Ö¹ÔÚ¾àµØÃæh=0.6mµÄ¸ß¶È´¦£¬´ËʱÎï¿éAÓ붨»¬ÂÖÏà¾àL¡£ÒÑÖªÎï¿éAÓë×ÀÃæ¼äµÄ¶¯Ä¦²ÁÒòÊý¦Ì=0.25£¬gÈ¡1Om/s2¡£ÏÖÊÍ·ÅÎï¿éB£¬Îï¿éBÏòÏÂÔ˶¯¡£
СÌâ1:ÇóÎï¿éB×ŵØÇ°¼ÓËٶȵĴóС¼°ÇáÉþ¶ÔËüÀÁ¦µÄ´óС¡£
СÌâ2:Îï¿éB×ŵغóÁ¢¼´Í£Ö¹Ô˶¯£¬ÒªÇóÎï¿éA²»×²µ½¶¨»¬ÂÖ£¬ÔòLÖÁÉٶ೤?
СÌâ1:ÇóÎï¿éB×ŵØÇ°¼ÓËٶȵĴóС¼°ÇáÉþ¶ÔËüÀÁ¦µÄ´óС¡£
СÌâ2:Îï¿éB×ŵغóÁ¢¼´Í£Ö¹Ô˶¯£¬ÒªÇóÎï¿éA²»×²µ½¶¨»¬ÂÖ£¬ÔòLÖÁÉٶ೤?
СÌâ1:
СÌâ2:
(1)Éè¼ÓËٶȴóСΪa£¬ÇáÉþ¶ÔBÀÁ¦µÄ´óСΪF£¬¸ù¾ÝÅ£¶ÙÔ˶¯¶¨ÂÉ ÓÐ
¶ÔA£º £¨2·Ö£©
¶ÔB£º £¨2·Ö£©
£¨1·Ö£©
£¨1·Ö£©
£¨2£©ÉèÎï¿éB×ŵØÇ°µÄËÙÂÊΪv£¬¸ù¾ÝÅ£¶ÙÔ˶¯¶¨ÂÉ¡¢Ô˶¯Ñ§¹«Ê½ ÓÐ
¶ÔA£º £¨1·Ö£©
£¨2·Ö£©
£¨2·Ö£©
½âµÃ £¨1·Ö£©
ÓÉÌâÒâÖª£º £¨1·Ö£©
ËùÒÔ£¬ÖÁÉÙ
¶ÔA£º £¨2·Ö£©
¶ÔB£º £¨2·Ö£©
£¨1·Ö£©
£¨1·Ö£©
£¨2£©ÉèÎï¿éB×ŵØÇ°µÄËÙÂÊΪv£¬¸ù¾ÝÅ£¶ÙÔ˶¯¶¨ÂÉ¡¢Ô˶¯Ñ§¹«Ê½ ÓÐ
¶ÔA£º £¨1·Ö£©
£¨2·Ö£©
£¨2·Ö£©
½âµÃ £¨1·Ö£©
ÓÉÌâÒâÖª£º £¨1·Ö£©
ËùÒÔ£¬ÖÁÉÙ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿