ÈçͼËùʾ£¬×ã¹»³¤µÄ¹â»¬Æ½ÐнðÊôµ¼¹ìMN¡¢PQÊúÖ±·ÅÖ㬴ŸÐӦǿ¶ÈB£½0.50TÔÈÇ¿´Å³¡´¹Ö±´©¹ýµ¼¹ìƽÃ棬µ¼¹ìµÄÉ϶ËMÓëP¼äÁ¬½Ó×èֵΪR£½0.50¦¸µÄµç×裬µ¼¹ì¿í¶ÈL£½0.40m¡£½ðÊô°ôab½ôÌùÔÚµ¼¹ìÉÏ£¬ÏÖʹ½ðÊô°ôabÓɾ²Ö¹¿ªÊ¼Ï»¬£¬Í¨¹ý´«¸ÐÆ÷¼Ç¼½ðÊô°ôabÏ»¬µÄ¾àÀëhÓëʱ¼ätµÄ¹ØϵÈçϱíËùʾ¡££¨½ðÊô°ôabºÍµ¼¹ìµç×è²»¼Æ£¬g=10m/s²£©

£¨1£©ÔÚt₁£½0.4 sʱ¼äÄÚ½ðÊô°ôabÏ»¬µÄ¾àÀëh£½0.6 m£¬ÉèÆäÖеĵ綯ÊÆƽ¾ùֵΪE₁£¬Ôò
                           ¡­¡­¡­¡­¡­¡­£¨2·Ö£©
½âµÃE₁£½0.3V                             ¡­¡­¡­¡­¡­¡­£¨2·Ö£©
£¨2£©´Ó±í¸ñÖÐÊý¾Ý¿ÉÖª£¬1.00sºó°ô×öÔÈËÙÔ˶¯£¬ÉèËÙ¶ÈΪv£¬µç¶¯ÊÆΪE£¬»Ø·ÖеĵçÁ÷ΪI£¬½ðÊô°ôÊܵ½µÄ°²ÅàÁ¦ÎªF£¬Ôò
£½5 m /s                            ¡­¡­¡­¡­¡­¡­£¨2·Ö£©
E£½BLv                                   ¡­¡­¡­¡­¡­¡­£¨1·Ö£©
                                    ¡­¡­¡­¡­¡­¡­£¨1·Ö£©
F£½BIL                                   ¡­¡­¡­¡­¡­¡­£¨1·Ö£©
F£½mg                                    ¡­¡­¡­¡­¡­¡­£¨1·Ö£©
½âµÃ
m="0.04kg                                  " ¡­¡­¡­¡­¡­¡­£¨2·Ö£©
£¨3£©°ôÔÚÏ»¬¹ý³ÌÖУ¬ÓÐÖØÁ¦ºÍ°²ÅàÁ¦×ö¹¦£¬¿Ë·þ°²ÅàÁ¦×öµÄ¹¦µÈÓڻطµÄ½¹¶úÈÈ£¬¸ù¾ÝÄÜÁ¿Êغ㠠
                        ¡­¡­¡­¡­¡­¡­£¨2·Ö£©
½âµÃQ_R="1.82" J                           ¡­¡­¡­¡­¡­¡­£¨2·Ö

ÂÔ