ÌâÄ¿ÄÚÈÝ
![](http://thumb.1010pic.com/pic3/upload/images/201405/46/1a42e808.png)
£¨1£©ÓÃÉÏÊöÎïÀíÁ¿µÄ·ûºÅд³öÇóÖØÁ¦¼ÓËٶȵÄÒ»°ã±í´ïʽg=
£¨2£©ÊµÑé½áÊøºó£¬Ä³Í¬Ñ§·¢ÏÖËû²âµÃµÄÖØÁ¦¼ÓËٶȵÄÖµ×ÜÊÇÆ«´ó£¬ÆäÔÒò¿ÉÄÜÊÇÏÂÊöÔÒòÖеÄ
A£®µ¥°ÚµÄÐüµãδ¹Ì¶¨½ô£¬Õñ¶¯ÖгöÏÖËɶ¯£¬Ê¹°ÚÏßÔö³¤ÁË
B£®°Ñn´Î°Ú¶¯µÄʱ¼äÎó¼ÇΪ£¨n+1£©´Î°Ú¶¯µÄʱ¼ä
C£®ÒÔ°ÚÏß³¤×÷Ϊ°Ú³¤À´¼ÆËã
D£®ÒÔ°ÚÏß³¤Óë°ÚÇòµÄÖ±¾¶Ö®ºÍ×÷Ϊ°Ú³¤À´¼ÆËã
£¨3£©Ä³Í¬Ñ§ÔÚ×ö¡°Óõ¥°Ú²â¶¨ÖØÁ¦¼ÓËٶȡ±µÄʵÑéÖУ¬ÓÃÃë±í²âµ¥°ÚÍê³É40´ÎÈ«Õñ¶¯µÄʱ¼äÈçͼËùʾ£¬Ôòµ¥°ÚµÄÖÜÆÚΪ
£¨4£©ÎªÁËÌá¸ßʵÑ龫¶È£¬ÔÚʵÑéÖпɸı伸´Î°Ú³¤L²¢²â³öÏàÓ¦µÄÖÜÆÚT£¬´Ó¶øµÃ³öÒ»×é¶ÔÓ¦µÄLÓëTµÄÊý¾Ý£¬ÔÙÒÔLΪºá×ø±ê¡¢T2Ϊ×Ý×ø±ê½«ËùµÃÊý¾ÝÁ¬³ÉÖ±Ïߣ¬²¢ÇóµÃ¸ÃÖ±ÏßµÄбÂÊk£®ÔòÖØÁ¦¼ÓËÙ¶Èg=
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
Èçͼ¼×ËùʾÊÇÒ»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨ÔÚt=0ʱ¿ÌµÄ²¨ÐÎͼ£¬PÊÇÀëÔµãx1=2mµÄÒ»¸ö½éÖÊÖʵ㣬QÊÇÀëÔµãx2=4mµÄÒ»¸ö½éÖÊÖʵ㣬´ËʱÀëÔµãx3=6mµÄ½éÖÊÖʵã¸Õ¸ÕÒª¿ªÊ¼Õñ¶¯£®Í¼ÒÒÊǸüòг²¨´«²¥·½ÏòÉϵÄijһÖʵãµÄÕñ¶¯Í¼Ï󣨼ÆʱÆðµãÏàͬ£©£®ÓÉ´Ë¿ÉÖª £¨¡¡¡¡£©
![](http://thumb.1010pic.com/pic3/upload/images/201405/60/b40c2fcf.png)
![](http://thumb.1010pic.com/pic3/upload/images/201405/60/b40c2fcf.png)
A¡¢ÕâÁв¨µÄ²¨³¤¦Ë=4m | B¡¢ÕâÁв¨µÄÖÜÆÚT=3s | C¡¢ÕâÁв¨µÄ´«²¥ËÙ¶Èv=2m/s | D¡¢ÕâÁв¨µÄ²¨Ô´ÆðÕñ·½ÏòΪÏòÉÏ | E¡¢ÒÒͼ¿ÉÄÜÊÇͼ¼×ÖÐÖʵãQµÄÕñ¶¯Í¼Ïó |