ÌâÄ¿ÄÚÈÝ
(12·Ö)Èçͼ¼×Ëùʾ£¬Á½Ï໥ƽÐеĹ⻬½ðÊôµ¼¹ìˮƽ·ÅÖ㬵¼¹ì¼ä¾àL=0£®5m£¬×ó¶Ë½ÓÓеç×èR=3
£¬ÊúÖ±ÏòϵĴų¡´Å¸ÐӦǿ¶È´óСËæ×ø±êxµÄ±ä»¯¹ØϵÈçͼÒÒËùʾ£®¿ªÊ¼µ¼Ìå°ôCD¾²Ö¹ÔÚµ¼¹ìÉϵÄx=0´¦£¬ÏÖ¸øµ¼Ìå°ôһˮƽÏòÓÒµÄÀÁ¦£¬Ê¹µ¼Ìå°ôÒÔlm/s2µÄ¼ÓËÙ¶ÈÑØxÖáÔȼÓËÙÔ˶¯£¬ÒÑÖªµ¼Ìå°ôÖÊÁ¿Îª2kg£¬µç×èΪ2
£¬µ¼Ìå°ôÓëµ¼¹ì½Ó´¥Á¼ºÃ£¬ÆäÓàµç×è²»¼Æ£®Çó£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250038358377239.jpg)
£¨1£©ÀÁ¦Ëæʱ¼ä±ä»¯µÄ¹Øϵʽ£»
£¨2£©µ±µ¼Ìå°ôÔ˶¯µ½x=4£®5m´¦Ê±³·µôÀÁ¦£¬´Ëʱµ¼Ìå°ôÁ½¶ËµÄµçѹ£¬´Ëºóµç×èRÉϲúÉúµÄÈÈÁ¿¡£
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835806333.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835806333.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250038358377239.jpg)
£¨1£©ÀÁ¦Ëæʱ¼ä±ä»¯µÄ¹Øϵʽ£»
£¨2£©µ±µ¼Ìå°ôÔ˶¯µ½x=4£®5m´¦Ê±³·µôÀÁ¦£¬´Ëʱµ¼Ìå°ôÁ½¶ËµÄµçѹ£¬´Ëºóµç×èRÉϲúÉúµÄÈÈÁ¿¡£
£¨1£©
£¨2£©
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835884417.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835853666.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835868405.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835884417.png)
ÊÔÌâ·ÖÎö£º£¨1£©Éè¾¹ýʱ¼ä
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835900267.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835900420.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835931628.png)
²úÉúµÄ¸ÐÓ¦µç¶¯ÊÆ
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835946527.png)
¸ù¾ÝÒÒͼ¿ÉÖª
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835962463.png)
²úÉúµÄ¸ÐÓ¦µçÁ÷
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835978616.png)
¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉÓÐ
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835993666.png)
ÕûÀíµÃ
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003835853666.png)
£¨2£©µ±µ¼Ìå°ôÔ˶¯µ½x=4£®5m´¦Ê±µ¼Ìå°ôÁ½¶ËµÄµçѹΪ
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003836024321.png)
´Å¸ÐӦǿ¶È
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003836056588.png)
¸ÐÓ¦µç¶¯ÊÆ
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003836071981.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003836087882.png)
³·È¥Á¦Fºó¶¯ÄÜÈ«²¿×ª»¯Îª½¹¶úÈȼ´
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250038361021099.png)
µç×èRÉÏÃæ²úÉúµÄ½¹¶úÈÈ
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003836118920.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿