ÌâÄ¿ÄÚÈÝ
ΪÁ˽ÚÔ¼ÄÜÔ´£¬ÓеĵØÏÂÌúµÀµÄ³µÕ¾Õ¾Ì¨½¨µÃ±È½Ï¸ß£¬³µÁ¾½øվʱҪÉÏÆ£¬³öվʱҪÏÂÆ£¬ÈçͼËùʾ¡£Éèij³µÕ¾µÄվ̨¸ß¶Èh=2m£¬½øվбƵij¤¶ÈΪ50m£¬³µÁ¾½øվǰµ½´ïƵ×ʱµÄËٶȴóСΪ10m/s£¬´Ëʱ¹Ø±Õ³µÁ¾µÄÇ£ÒýÁ¦£¬³µÁ¾¡°³å¡±ÉÏվ̨¡£¼ÙÉè³µÁ¾ÔÚбƺÍˮƽ¹ìµÀÉÏÊܵ½ÌúµÀµÄĦ²ÁÁ¦¾ùΪÆäÖØÁ¦µÄ0.05±¶£¬È¡g=10m£¯s£²¡£Ôò³µÁ¾¸Õ³åÉÏվ̨ʱËÙ¶Èv1= __________m/s£¬³µÁ¾ÔÚվ̨ÉÏ»¹ÄÜÇ°½øµÄ¾àÀëL=____________m¡£
3.16£»10
ÂÔ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿