ÌâÄ¿ÄÚÈÝ
Ò»»¡Ð묵À϶ËÓëˮƽ´«ËÍ´øÏàÇУ¬Ò»¹¤¼þ´Óh=1.05¸ß´¦µÄAÓɾ²Ö¹»¬ÏºóÒÔˮƽËٶȻ¬ÉÏ´«ËÍ´ø¡£¹¤¼þÖÊÁ¿m=1.0kg£¬¹¤¼þÓ뻬µÀ¼äƽ¾ùĦ²Á×èÁ¦µÄ´óСf=5.0N£¬¹¤¼þ»¬¹ýµÄ»¡³¤l=2.0m¡£´«ËÍ´ø³¤L=10m£¬ÏòÓÒ±£³Öv0=2.0m£¯sµÄÔËÐÐËٶȲ»±ä£¬¹¤¼þÓë´«ËÍ´ø¼äµÄ¶¯Ä¦²ÁÒòÊý
=0.20£¬g=10m/s2£¬¿ÕÆø×èÁ¦²»¼Æ£¬¹¤¼þ¿É¿´³ÉÖʵ㡣
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241627522687486.png)
£¨1£©Ç󹤼þ»¬ÉÏ´«ËÍ´øʱµÄËٶȴóСv1=?
£¨2£©Çó´«ËÍ´ø´«ËÍÒ»¸ö¹¤¼þʱ£¬¿Ë·þ¹¤¼þĦ²ÁÁ¦Ëù×öµÄ¹¦£¿
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162751971301.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241627522687486.png)
£¨1£©Ç󹤼þ»¬ÉÏ´«ËÍ´øʱµÄËٶȴóСv1=?
£¨2£©Çó´«ËÍ´ø´«ËÍÒ»¸ö¹¤¼þʱ£¬¿Ë·þ¹¤¼þĦ²ÁÁ¦Ëù×öµÄ¹¦£¿
£¨1£©v1=1.0m/s£¨2£©![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162752502999.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162752502999.png)
ÊÔÌâ·ÖÎö£º£¨1£©Óɶ¯Äܶ¨Àí£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162752658946.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241627528141031.png)
µÃ£ºv1="1.0m/s" ¢Û
£¨2£©Óɶ¯Á¿¶¨Àí£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162753110751.png)
µÃ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162753391905.png)
ÔÚt1ÄÚ´«ËÍ´øλÒÆ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162753672724.png)
¿Ë·þĦ²Á×ö¹¦£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824162752502999.png)
µãÆÀ£ºÎïÌåµÄËٶȺʹ«ËÍ´øµÄËÙ¶ÈÖ®¼ä¿ÉÄÜÓжàÖÖÇé¿ö£¬ÔÚ·ÖÎöÎÊÌâʱһ¶¨Òª¿¼ÂÇÈ«Ã棬·ñÔò¾ÍÈÝÒשµô´ð°¸£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿