ÈçͼËùʾΪijÁ¸²ÖÖÐÓÉÁ½Ì¨Æ¤´ø´«ËÍ»ú×é³ÉµÄ´«Êä×°ÖÃʾÒâͼ£®É豸µ÷ÊÔʱ£¬½«Çãб´«ËÍ»úµÄ´«ËÍ´øÓëˮƽµØÃæ¼äµ÷³ÉÇã½Ç¦È=37¡ã£¬Ê¹Ë®Æ½´«ËÍ»úµÄת¶¯ÂÖ±ßÔµÒÔ5m/sµÄÏßËÙ¶ÈÑØ˳ʱÕë·½ÏòÔÈËÙת¶¯£®A¡¢BÁ½¶ËÏà¾àL=3m£¬C¡¢DÁ½¶ËÏà¾à½ÏÔ¶¡£ÏÖ½«ÖÊÁ¿m=10kgµÄÒ»´ü´óÃ×ÎÞ³õËٵķÅÔÚA¶Ë£¬ËüËæ´«ËÍ´øµ½´óB¶Ëºó£¬ËٶȴóС²»±äµØ´«µ½Çãб´«ËÍ´øµÄC¶Ë£¬Ã×´üÓëÁ½´«ËÍ´øÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¾ùΪ¦Ì=0.5£¬×î´ó¾²Ä¦²ÁÁ¦´óСÓ뻬¶¯Ä¦²ÁÁ¦´óСÏàµÈ£¨ÒÑÖªg=10m/s2¡¢sin37¡ã=0.6¡¢cos37¡ã=0.8£¬´«ËÍ»úÔ˶¯Ê±´«ËÍ´øÓëת¶¯ÂÖÖ®¼äÎÞ»¬¶¯£©£®

¡¾Ð¡Ìâ1¡¿ÇóÃ×´ü´ÓA¶ËÔ˶¯µ½B¶ËËùÓõÄʱ¼ä£»
¡¾Ð¡Ìâ2¡¿ÈôÇãб´«ËÍ´øCD²»Ô˶¯£¬ÔòÃ×´üÑØ´«ËÍ´øCDËùÄÜÉÏ»¬µÄ×î´ó¾àÀëÊǶàÉÙ£¿
¡¾Ð¡Ìâ3¡¿½«Çãб´«ËÍ´ø¿ª¶¯Ê¹×ª¶¯ÂÖÑØ˳ʱÕë·½Ïòת¶¯Ê±·¢ÏÖ£¬ÎÞÂÛת¶¯Ëٶȶà´ó£¬Ã×´ü¶¼ÎÞ·¨ÔËË͵½¾àC¶Ë½ÏÔ¶µÄD¶Ë£¬ÊÔ·ÖÎöÆäÔ­Òò¡£ÓûʹÃ×´üÄÜÔËË͵½D¶ËÓ¦ÔõÑùµ÷ÊÔÇãбµÄ´«ËÍ´ø£¿


¡¾Ð¡Ìâ1¡¿1.1S
¡¾Ð¡Ìâ2¡¿1.25m
¡¾Ð¡Ìâ3¡¿

½âÎö

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾΪijÁ¸²ÖÖÐÓÉÁ½Ì¨Æ¤´ø´«ËÍ»ú×é³ÉµÄ´«Êä×°ÖÃʾÒâͼ£®É豸µ÷ÊÔʱ£¬½«Çãб´«ËÍ»úµÄ´«ËÍ´øÓëˮƽµØÃæ¼äµ÷³ÉÇã½Ç¦È=37¡ã£¬Ê¹Ë®Æ½´«ËÍ»úµÄת¶¯ÂÖ±ßÔµÒÔ5m/sµÄÏßËÙ¶ÈÑØ˳ʱÕë·½ÏòÔÈËÙת¶¯£®A¡¢BÁ½¶ËÏà¾àL=3m£¬C¡¢DÁ½¶ËÏà¾à½ÏÔ¶£®ÏÖ½«ÖÊÁ¿m=10kgµÄÒ»´ü´óÃ×ÎÞ³õËٵķÅÔÚA¶Ë£¬ËüËæ´«ËÍ´øµ½´óB¶Ëºó£¬ËٶȴóС²»±äµØ´«µ½Çãб´«ËÍ´øµÄC¶Ë£¬Ã×´üÓëÁ½´«ËÍ´øÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¾ùΪ¦Ì=0.5£¬×î´ó¾²Ä¦²ÁÁ¦´óСÓ뻬¶¯Ä¦²ÁÁ¦´óСÏàµÈ£¨ÒÑÖªg=10m/s2¡¢sin37¡ã=0.6¡¢cos37¡ã=0.8£¬´«ËÍ»úÔ˶¯Ê±´«ËÍ´øÓëת¶¯ÂÖÖ®¼äÎÞ»¬¶¯£©£®
£¨1£©ÇóÃ×´ü´ÓA¶ËÔ˶¯µ½B¶ËËùÓõÄʱ¼ä£»
£¨2£©ÈôÇãб´«ËÍ´øCD²»Ô˶¯£¬ÔòÃ×´üÑØ´«ËÍ´øCDËùÄÜÉÏ»¬µÄ×î´ó¾àÀëÊǶàÉÙ£¿
£¨3£©½«Çãб´«ËÍ´ø¿ª¶¯Ê¹×ª¶¯ÂÖÑØ˳ʱÕë·½Ïòת¶¯Ê±·¢ÏÖ£¬ÎÞÂÛת¶¯Ëٶȶà´ó£¬Ã×´ü¶¼ÎÞ·¨ÔËË͵½¾àC¶Ë½ÏÔ¶µÄD¶Ë£¬ÊÔ·ÖÎöÆäÔ­Òò£®ÓûʹÃ×´üÄÜÔËË͵½D¶ËÓ¦ÔõÑùµ÷ÊÔÇãбµÄ´«ËÍ´ø£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾΪijÁ¸²ÖÖÐÓÉÁ½Ì¨Æ¤´ø´«ËÍ»ú×é³ÉµÄ´«Êä×°ÖÃʾÒâͼ£®É豸µ÷ÊÔʱ£¬½«Çãб´«ËÍ»úµÄ´«ËÍ´øÓëˮƽµØÃæ¼äµ÷³ÉÇã½Ç¦È=37¡ã£¬Ê¹Ë®Æ½´«ËÍ»úµÄת¶¯ÂÖ±ßÔµÒÔ5m/sµÄÏßËÙ¶ÈÑØ˳ʱÕë·½ÏòÔÈËÙת¶¯£®A¡¢BÁ½¶ËÏà¾àL=3m£¬C¡¢DÁ½¶ËÏà¾à½ÏÔ¶¡£ÏÖ½«ÖÊÁ¿m=10kgµÄÒ»´ü´óÃ×ÎÞ³õËٵķÅÔÚA¶Ë£¬ËüËæ´«ËÍ´øµ½´óB¶Ëºó£¬ËٶȴóС²»±äµØ´«µ½Çãб´«ËÍ´øµÄC¶Ë£¬Ã×´üÓëÁ½´«ËÍ´øÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¾ùΪ¦Ì=0.5£¬×î´ó¾²Ä¦²ÁÁ¦´óСÓ뻬¶¯Ä¦²ÁÁ¦´óСÏàµÈ£¨ÒÑÖªg=10m/s2¡¢sin37¡ã=0.6¡¢cos37¡ã=0.8£¬´«ËÍ»úÔ˶¯Ê±´«ËÍ´øÓëת¶¯ÂÖÖ®¼äÎÞ»¬¶¯£©£®

1.ÇóÃ×´ü´ÓA¶ËÔ˶¯µ½B¶ËËùÓõÄʱ¼ä£»

2.ÈôÇãб´«ËÍ´øCD²»Ô˶¯£¬ÔòÃ×´üÑØ´«ËÍ´øCDËùÄÜÉÏ»¬µÄ×î´ó¾àÀëÊǶàÉÙ£¿

3.½«Çãб´«ËÍ´ø¿ª¶¯Ê¹×ª¶¯ÂÖÑØ˳ʱÕë·½Ïòת¶¯Ê±·¢ÏÖ£¬ÎÞÂÛת¶¯Ëٶȶà´ó£¬Ã×´ü¶¼ÎÞ·¨ÔËË͵½¾àC¶Ë½ÏÔ¶µÄD¶Ë£¬ÊÔ·ÖÎöÆäÔ­Òò¡£ÓûʹÃ×´üÄÜÔËË͵½D¶ËÓ¦ÔõÑùµ÷ÊÔÇãбµÄ´«ËÍ´ø£¿

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012½ì¶È½­ËÕÊ¡ËÕÖÝÊиßÈýÉÏѧÆÚÆÚÄ©µ÷ÑвâÊÔÎïÀí¾í ÌâÐÍ£º¼ÆËãÌâ

ÈçͼËùʾΪijÁ¸²ÖÖÐÓÉÁ½Ì¨Æ¤´ø´«ËÍ»ú×é³ÉµÄ´«Êä×°ÖÃʾÒâͼ£®É豸µ÷ÊÔʱ£¬½«Çãб´«ËÍ»úµÄ´«ËÍ´øÓëˮƽµØÃæ¼äµ÷³ÉÇã½Ç¦È=37¡ã£¬Ê¹Ë®Æ½´«ËÍ»úµÄת¶¯ÂÖ±ßÔµÒÔ5m/sµÄÏßËÙ¶ÈÑØ˳ʱÕë·½ÏòÔÈËÙת¶¯£®A¡¢BÁ½¶ËÏà¾àL=3m£¬C¡¢DÁ½¶ËÏà¾à½ÏÔ¶¡£ÏÖ½«ÖÊÁ¿m=10kgµÄÒ»´ü´óÃ×ÎÞ³õËٵķÅÔÚA¶Ë£¬ËüËæ´«ËÍ´øµ½´óB¶Ëºó£¬ËٶȴóС²»±äµØ´«µ½Çãб´«ËÍ´øµÄC¶Ë£¬Ã×´üÓëÁ½´«ËÍ´øÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¾ùΪ¦Ì=0.5£¬×î´ó¾²Ä¦²ÁÁ¦´óСÓ뻬¶¯Ä¦²ÁÁ¦´óСÏàµÈ£¨ÒÑÖªg=10m/s2¡¢sin37¡ã=0.6¡¢cos37¡ã=0.8£¬´«ËÍ»úÔ˶¯Ê±´«ËÍ´øÓëת¶¯ÂÖÖ®¼äÎÞ»¬¶¯£©£®

1.ÇóÃ×´ü´ÓA¶ËÔ˶¯µ½B¶ËËùÓõÄʱ¼ä£»

2.ÈôÇãб´«ËÍ´øCD²»Ô˶¯£¬ÔòÃ×´üÑØ´«ËÍ´øCDËùÄÜÉÏ»¬µÄ×î´ó¾àÀëÊǶàÉÙ£¿

3.½«Çãб´«ËÍ´ø¿ª¶¯Ê¹×ª¶¯ÂÖÑØ˳ʱÕë·½Ïòת¶¯Ê±·¢ÏÖ£¬ÎÞÂÛת¶¯Ëٶȶà´ó£¬Ã×´ü¶¼ÎÞ·¨ÔËË͵½¾àC¶Ë½ÏÔ¶µÄD¶Ë£¬ÊÔ·ÖÎöÆäÔ­Òò¡£ÓûʹÃ×´üÄÜÔËË͵½D¶ËÓ¦ÔõÑùµ÷ÊÔÇãбµÄ´«ËÍ´ø£¿

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011-2012ѧÄê½­ËÕÊ¡ËÕÖÝÊиßÈý£¨ÉÏ£©ÆÚÄ©ÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ÈçͼËùʾΪijÁ¸²ÖÖÐÓÉÁ½Ì¨Æ¤´ø´«ËÍ»ú×é³ÉµÄ´«Êä×°ÖÃʾÒâͼ£®É豸µ÷ÊÔʱ£¬½«Çãб´«ËÍ»úµÄ´«ËÍ´øÓëˮƽµØÃæ¼äµ÷³ÉÇã½Ç¦È=37°£¬Ê¹Ë®Æ½´«ËÍ»úµÄת¶¯ÂÖ±ßÔµÒÔ5m/sµÄÏßËÙ¶ÈÑØ˳ʱÕë·½ÏòÔÈËÙת¶¯£®A¡¢BÁ½¶ËÏà¾àL=3m£¬C¡¢DÁ½¶ËÏà¾à½ÏÔ¶£®ÏÖ½«ÖÊÁ¿m=10kgµÄÒ»´ü´óÃ×ÎÞ³õËٵķÅÔÚA¶Ë£¬ËüËæ´«ËÍ´øµ½´óB¶Ëºó£¬ËٶȴóС²»±äµØ´«µ½Çãб´«ËÍ´øµÄC¶Ë£¬Ã×´üÓëÁ½´«ËÍ´øÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¾ùΪ¦Ì=0.5£¬×î´ó¾²Ä¦²ÁÁ¦´óСÓ뻬¶¯Ä¦²ÁÁ¦´óСÏàµÈ£¨ÒÑÖªg=10m/s2¡¢sin37°=0.6¡¢cos37°=0.8£¬´«ËÍ»úÔ˶¯Ê±´«ËÍ´øÓëת¶¯ÂÖÖ®¼äÎÞ»¬¶¯£©£®
£¨1£©ÇóÃ×´ü´ÓA¶ËÔ˶¯µ½B¶ËËùÓõÄʱ¼ä£»
£¨2£©ÈôÇãб´«ËÍ´øCD²»Ô˶¯£¬ÔòÃ×´üÑØ´«ËÍ´øCDËùÄÜÉÏ»¬µÄ×î´ó¾àÀëÊǶàÉÙ£¿
£¨3£©½«Çãб´«ËÍ´ø¿ª¶¯Ê¹×ª¶¯ÂÖÑØ˳ʱÕë·½Ïòת¶¯Ê±·¢ÏÖ£¬ÎÞÂÛת¶¯Ëٶȶà´ó£¬Ã×´ü¶¼ÎÞ·¨ÔËË͵½¾àC¶Ë½ÏÔ¶µÄD¶Ë£¬ÊÔ·ÖÎöÆäÔ­Òò£®ÓûʹÃ×´üÄÜÔËË͵½D¶ËÓ¦ÔõÑùµ÷ÊÔÇãбµÄ´«ËÍ´ø£¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸