ÌâÄ¿ÄÚÈÝ
Ò»Á¾µç¶¯Íæ¾ß³µAµãÓɾ²Ö¹¿ªÊ¼ÒÔ¼ÓËÙ¶Èa1ÔÚµØÃæÉÏ×öÔȼÓËÙÖ±ÏßÔ˶¯,¾¹ýÒ»¶Îʱ¼äºóÁ¢¼´×öÔȼõËÙÔ˶¯£¬×îºóÍ£ÔÚCµã.ÿ¸ô0.2ÃëÖÓͨ¹ýËٶȴ«¸ÐÆ÷²âÁ¿ÎïÌåµÄ˲ʱËÙ¶È,ϱí¸ø³öÁ˲¿·Ö²âÁ¿Êý¾Ý.Çó:
(1)С³µ¼ÓËÙÔ˶¯µÄ¼ÓËÙ¶Èa1µÄ´óС
(2)ACµÄ¾àÀë
(3) t ="0.6" s ʱµÄ˲ʱËÙ¶È v
t ( s ) | 0.0 | 0.2 | 0.4 | ¡ | 1.2 | 1.4 | ¡ |
v( m/s ) | 0.0 | 1.0 | 2.0 | ¡ | 1.1 | 0.7 | ¡ |
(2)ACµÄ¾àÀë
(3) t ="0.6" s ʱµÄ˲ʱËÙ¶È v
(1)
£¨4·Ö£© ![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832193595.gif)
£¨2£©Éè¾tÃë³µ´ïµ½×î´óËÙ¶ÈΪ
£¬¶Ôt--1.4s ÓÐ![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832224582.gif)
½âµÃ£º
£¨2·Ö£©
="2.19m " £¨2·Ö£©
£¨3£©
£¨4·Ö£©
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832193594.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832193595.gif)
£¨2£©Éè¾tÃë³µ´ïµ½×î´óËÙ¶ÈΪ
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832208309.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832224582.gif)
½âµÃ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832239281.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832255467.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832271720.gif)
£¨3£©
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122832286720.gif)
ÂÔ
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿