ÌâÄ¿ÄÚÈÝ
Èçͼ(a)£¬±íʾһÌõ¾ùÔÈϸÉþ£¬0¡¢1¡¢2¡¢3¡¢¡¡±íʾÉþÉϵÄһϵÁеȼä¸ôµÄÖʵ㣬ÓÉ0µ½15µãµÄ³¤¶ÈΪ180cm¡£Ò»Áмòгºá²¨ÑØ´ËÉþ´«²¥£¬ÔÚt=0ʱ¿Ì£¬ÉþÉÏ9~12µãµÄλÖü°Ô˶¯·½ÏòÈçͼ(b)Ëùʾ£»t=14sʱ¿Ì£¬ÉþÉÏ3~6¸÷µãµÄλÖÃÈçͼ (c)Ëùʾ£»t=20sʱ¿Ì£¬ÉþÉÏ6~9¸÷µãµÄλÖÃÈçͼ(d)Ëùʾ¡£ÊÔÈ·¶¨£º
(1) ´Ë²¨µÄ²¨³¤£»
(2) ²¨µÄ´«²¥·½Ïò£»
(3) ´Ë²¨ÔÚÉþÖеÄ×îС´«²¥Ëٶȡ£![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241332442456370.png)
(1) ´Ë²¨µÄ²¨³¤£»
(2) ²¨µÄ´«²¥·½Ïò£»
(3) ´Ë²¨ÔÚÉþÖеÄ×îС´«²¥Ëٶȡ£
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241332442456370.png)
(1) 144 cm(2) ÓÒ´«(3)0.18m/s
(1)
¡Á12 cm ="144" cm£» 2·Ö
(2) ÓÒ´« £» 1·Ö
(3)
£¬ 2·Ö
£» 2·Ö
Á½Ê½Ïà¼õµÃ£º
¡£ 1·Ö
Ôòµ±
ʱ£¬
¡£ 1·Ö
´Ó¶øÇó×îС²¨ËÙ
¡£ 1·Ö
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133244354647.png)
(2) ÓÒ´« £» 1·Ö
(3)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133244401726.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133244479716.png)
Á½Ê½Ïà¼õµÃ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133244526744.png)
Ôòµ±
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133244573501.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133244604656.png)
´Ó¶øÇó×îС²¨ËÙ
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241332446511203.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿