ÌâÄ¿ÄÚÈÝ

ÇãбѩµÀµÄ³¤Îª25 m£¬¶¥¶Ë¸ßΪ15 m£¬Ï¶˾­¹ýһС¶ÎÔ²»¡¹ý¶ÉºóÓëºÜ³¤µÄˮƽѩµÀÏà½Ó£¬ÈçͼËùʾ¡£Ò»»¬Ñ©Ô˶¯Ô±ÔÚÇãбѩµÀµÄ¶¥¶ËÒÔˮƽËÙ¶È=8 m/s·É³ö£¬ÔÚÂäµ½ÇãбѩµÀÉÏʱ£¬Ô˶¯Ô±¿¿¸Ä±ä×ËÊƽøÐлº³åʹ×Ô¼ºÖ»±£ÁôÑØбÃæµÄ·ÖËٶȶø²»µ¯Æð¡£³ý»º³å¹ý³ÌÍâÔ˶¯Ô±¿ÉÊÓΪÖʵ㣬¹ý¶ÉÔ²»¡¹â»¬£¬Æ䳤¶È¿ÉºöÂÔ¡£É軬ѩ°åÓëÑ©µÀµÄ¶¯Ä¦²ÁÒòÊý¦Ì=0.2£¬ÇóÔ˶¯Ô±ÔÚˮƽѩµÀÉÏ»¬ÐеľàÀ루ȡg=10 m/£©¡£

s2£½74.8 m


½âÎö:

Èçͼѡ×ø±ê£¬Ð±ÃæµÄ·½³ÌΪ£º

                   ¢Ù

Ô˶¯Ô±·É³öºó×öƽÅ×Ô˶¯

                        ¢Ú

                      ¢Û

ÁªÁ¢¢Ù¢Ú¢Ûʽ£¬µÃ·ÉÐÐʱ¼ä

          t£½1.2 s   

ÂäµãµÄx×ø±ê£ºx1£½v0t£½9.6 m

ÂäµãÀëбÃ涥¶ËµÄ¾àÀ룺

Âäµã¾àµØÃæµÄ¸ß¶È£º

½Ó´¥Ð±ÃæÇ°µÄx·ÖËٶȣº

                 y·ÖËٶȣº

ÑØбÃæµÄËٶȴóСΪ£º

ÉèÔ˶¯Ô±ÔÚˮƽѩµÀÉÏÔ˶¯µÄ¾àÀëΪs2£¬Óɹ¦ÄܹØϵµÃ£º

           

      ½âµÃ£ºs2£½74.8 m

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø