ÈçͼËùʾ£¬Á½Îï¿éA¡¢BÌ×ÔÚˮƽ´Ö²ÚµÄCD¸ËÉÏ£¬²¢Óò»¿ÉÉ쳤µÄÇáÉþÁ¬½Ó£¬Õû¸ö×°ÖÃÄÜÈƹýCDÖеãµÄÖáOO¡äת¶¯£¬ÒÑÖªÁ½Îï¿éÖÊÁ¿ÏàµÈ£¬¸ËCD¶ÔÎï¿éA¡¢BµÄ×î´ó¾²Ä¦²ÁÁ¦´óСÏàµÈ£¬¿ªÊ¼Ê±Éþ×Ó´¦ÓÚ×ÔÈ»³¤¶È£¨Éþ×ÓÇ¡ºÃÉìÖ±µ«ÎÞµ¯Á¦£©£¬Îï¿éAµ½OO¡äÖáµÄ¾àÀëΪÎï¿éBµ½OO¡äÖá¾àÀëµÄÁ½±¶£¬ÏÖÈøÃ×°ÖôӾ²Ö¹¿ªÊ¼×ª¶¯£¬Ê¹×ªËÙÖð½¥Ôö´ó£¬ÔÚ´ÓÉþ×Ó´¦ÓÚ×ÔÈ»³¤¶Èµ½Á½Îï¿éA¡¢B¼´½«»¬¶¯µÄ¹ý³ÌÖУ¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
·ÖÎö£ºÔÚת¶¯¹ý³ÌÖУ¬Á½ÎïÌ嶼ÐèÒªÏòÐÄÁ¦À´Î¬³Ö£¬Ò»¿ªÊ¼ÊǾ²Ä¦²ÁÁ¦×÷ΪÏòÐÄÁ¦£¬µ±Ä¦²ÁÁ¦²»×ãÒÔ×öĦ²ÁÁ¦Ê±£¬Éþ×ÓµÄÀ­Á¦¾Í»áÀ´×ö²¹³ä£¬ËÙ¶ÈÔٿ죬µ±Õâ2¸öÁ¦µÄºÏÁ¦¶¼²»×ãÒÔ×öÏòÐÄÁ¦Ê±£¬ÎïÌ彫»á·¢ÉúÏà¶Ô»¬¶¯£®
½â´ð£º½â£ºA¡¢·ÖÎöB£¬ÒòΪÊÇAÏÈʹÉþ×Ó²úÉúÀ­Á¦µÄ£¬ËùÒÔµ±Éþ×ӸպòúÉúÀ­Á¦Ê±BÊܾ²Ä¦²ÁÁ¦×÷ÓÃÇÒδµ½×î´ó¾²Ä¦²ÁÁ¦£¬´ËºóBµÄÏòÐÄÁ¦Ò»²¿·Ö½«»áÓÉÉþ×ÓÀ­Á¦À´Ìṩ£¬¾²Ä¦²ÁÁ¦»á¼õС£¬¶øÔÚ²úÉúÀ­Á¦Ç°BµÄ¾²Ä¦²ÁÁ¦ÊÇÒ»Ö±Ôö´óµÄ£¬ÆäʵBËùÊܾ²Ä¦²ÁÁ¦ÊÇÏÈÔö´óºó¼õСÔÙÔö´óµÄ£®¹ÊA£¬B´íÎó£®
C¡¢ÓÉÓÚAµÄ°ë¾¶±ÈB´ó£®¸ù¾ÝÏòÐÄÁ¦µÄÁíÒ»¸ö¹«Ê½  FÏò=m¦Ø2R£¬¿ÉÖª A¡¢BµÄ½ÇËÙ¶ÈÏàͬ£¬ËùÒÔAËùÐèÏòÐÄÁ¦±ÈB´ó£¬ÒòΪÁ½ÎïÌåµÄ×î´ó¾²Ä¦²ÁÁ¦Ò»Ñù£¬ËùÒÔAÎïÌåµÄ¾²Ä¦²ÁÁ¦»áÏȲ»×ãÒÔÌṩÏòÐÄÁ¦¶øʹÉþ×Ó²úÉúÀ­Á¦£¬Ö®ºóËæ×ÅËٶȵÄÔö´ó£¬¾²Ä¦²ÁÁ¦ÒѾ­×î´ó²»±äÁË£¬Éþ×ÓÀ­Á¦²»¶ÏÔö´óÀ´ÌṩÏòÐÄÁ¦£¬ËùÒÔAËùÊܾ²Ä¦²ÁÁ¦ÊÇÏÈÔö´óºó²»±äµÄ£¬C´íÎó£®
D¡¢¸ù¾ÝÏòÐÄÁ¦¹«Ê½£¬FÏò=m
v2
R
£¬ÔÚ·¢ÉúÏà¶Ô»¬¶¯Ç°ÎïÌåµÄ°ë¾¶ÊDz»±äµÄ£¬ÖÊÁ¿Ò²²»±ä£¬Ëæ×ÅËٶȵÄÔö´ó£¬ÏòÐÄÁ¦Ôö´ó£¬¶øÏòÐÄÁ¦¾ÍÊÇÎïÌåµÄºÏÁ¦£¬¹ÊDÕýÈ·£®
¹ÊÑ¡£ºD
µãÆÀ£º±¾Ìâ·Ö¶Î·ÖÎö£ºÔÚ³öÏÖÉþ×ÓÀ­Á¦Ç°£¬»¬¶¯Ç°¼°»¬¶¯ºó£®ÓÉÓÚAÐèÒªµÄÏòÐÄÁ¦´óÓÚB£¬ËùÒÔÔÚËæ×Åת¶¯¼Ó¿ìʱ£¬AÏÈ´ïµ½×î´ó¾²Ä¦²ÁÁ¦£»Í¬Ê±³öÏÖ»¬¶¯Ê±£¬AµÄ»¬¶¯Ä¦²ÁÁ¦Ö¸ÏòÔ²ÐÄ£¬¶øBµÄ»¬¶¯Ä¦²ÁÁ¦±³ÀëÔ²ÐÄ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Á½Îï¿éA¡¢BÌ×ÔÚˮƽ¹â»¬µÄCD¸ËÉÏ£¬²¢Óò»¿ÉÉ쳤µÄÇáÉþÁ¬½Ó£¬Õû¸ö×°ÖÃÈƹýCDÖеãµÄÖáOO'ÔÈËÙת¶¯£¬ÒÑÖªAµÄÖÊÁ¿Ð¡ÓÚBµÄÖÊÁ¿£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬Á½Îï¿éA¡¢BÌ×ÔÚˮƽ´Ö²ÚµÄCD¸ËÉÏ£¬²¢Óò»¿ÉÉ쳤µÄÇáÉþÁ¬½Ó£¬Õû¸ö×°ÖÃÄÜÈƹýCDÖеãµÄÖáOO1ת¶¯£¬ÒÑÖªÁ½Îï¿éÖÊÁ¿ÏàµÈ£¬¸ËCD¶ÔÎï¿éA¡¢BµÄ×î´ó¾²Ä¦²ÁÁ¦´óСÏàµÈ£¬¿ªÊ¼Ê±Éþ×Ó´¦ÓÚ×ÔÈ»³¤¶È£¨Éþ×ÓÇ¡ºÃÉìÖ±µ«ÎÞµ¯Á¦£©£¬Îï¿éBµ½OO1ÖáµÄ¾àÀëΪÎï¿éAµ½OO1ÖáµÄ¾àÀëµÄÁ½±¶£¬ÏÖÈøÃ×°ÖôӾ²Ö¹¿ªÊ¼×ª¶¯£¬Ê¹×ªËÙÖð½¥Ôö´ó£¬ÔÚ´ÓÉþ×Ó´¦ÓÚ×ÔÈ»³¤¶Èµ½Á½Îï¿éA¡¢B¼´½«»¬¶¯µÄ¹ý³ÌÖУ¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Á½Îï¿éA¡¢BÌ×ÔÚˮƽ´Ö²ÚµÄCD¸ËÉÏ£¬²¢Óò»¿ÉÉ쳤µÄÇáÉþÁ¬½Ó£¬Õû¸ö×°ÖÃÄÜÈƹýCDÖеãµÄÖáOO1ת¶¯£¬ÒÑÖªÁ½Îï¿éÖÊÁ¿ÏàµÈ£¬¸ËCD¶ÔÁ½Îï¿éµÄ×î´ó¾²Ä¦²ÁÁ¦´óСÏàµÈ£¬¿ªÊ¼Ê±Éþ×Ó´¦ÓÚ×ÔÈ»³¤¶È£¨Éþ×ÓÇ¡ºÃÉìÖ±µ«ÎÞµ¯Á¦£©£¬Îï¿éBµ½OO1ÖáµÄ¾àÀëΪÎï¿éAµ½OO1ÖáµÄ¾àÀëµÄÁ½±¶£¬ÏÖÈøÃ×°ÖôӾ²Ö¹¿ªÊ¼×ª¶¯£¬Ê¹×ªËÙÖð½¥Ôö´ó£¬ÔÚ´ÓÉþ×Ó´¦ÓÚ×ÔÈ»³¤¶Èµ½Á½A¡¢B¼´½«»¬¶¯µÄ¹ý³ÌÖУ¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ £¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬Á½Îï¿éA¡¢B²¢Åž²Ö¹ÓÚ¸ßh=0.80mµÄ¹â»¬Ë®Æ½×ÀÃæÉÏ£¬Îï¿éµÄÖÊÁ¿¾ùΪM=0.60kg£®Ò»¿ÅÖÊÁ¿m=0.10kgµÄ×Óµ¯ÒÔv0=100m/sµÄˮƽËٶȴÓ×óÃæÉäÈëA£¬×Óµ¯Éä´©Aºó½Ó×ÅÉäÈëB²¢ÁôÔÚBÖУ¬´ËʱA¡¢B¶¼Ã»ÓÐÀ뿪×ÀÃ森ÒÑÖªÎï¿éAµÄ³¤¶ÈΪ0.27m£¬AÀ뿪×ÀÃæºó£¬ÂäµØµãµ½×À±ßµÄˮƽ¾àÀës=2.0m£®Éè×Óµ¯ÔÚÎï¿éA¡¢BÖд©ÐÐʱÊܵ½µÄ×èÁ¦±£³Ö²»±ä£¬gÈ¡10m/s2£®ÎÊ£º
£¨1£©Îï¿éAºÍÎï¿éBÀ뿪×ÀÃæʱËٶȵĴóС·Ö±ðÊǶàÉÙ£¿
£¨2£©×Óµ¯ÔÚÎï¿éBÖд©ÐеľàÀëºÍËùÊܵÄ×èÁ¦´óС£»
£¨3£©ÎªÁËʹ×Óµ¯ÔÚÎï¿éBÖд©ÐÐʱÎï¿éBδÀ뿪×ÀÃ棬ÇóÎï¿éBµ½×À±ßµÄ×îС¾àÀ룮

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬Á½Îï¿éA¡¢BÌ×ÔÚˮƽ´Ö²ÚµÄCD¸ËÉÏ£¬²¢Óò»¿ÉÉ쳤µÄÇáÉþÁ¬½Ó£¬Õû¸ö×°ÖÃÄÜÈƹýCDÖеãµÄÖáOO1ת¶¯£¬ÒÑÖªÁ½Îï¿éÖÊÁ¿ÏàµÈ£¬¸ËCD¶ÔÎï¿éA¡¢BµÄ×î´ó¾²Ä¦²ÁÁ¦´óСÏàµÈ£¬¿ªÊ¼Ê±Éþ×Ó´¦ÓÚ×ÔÈ»³¤¶È£¨Éþ×ÓÇ¡ºÃÉìÖ±µ«ÎÞµ¯Á¦£©£¬Îï¿éBµ½OO1ÖáµÄ¾àÀëΪÎï¿éAµ½OO1ÖáµÄ¾àÀëµÄÁ½±¶£¬ÏÖÈøÃ×°ÖôӾ²Ö¹¿ªÊ¼×ª¶¯£¬Ê¹×ªËÙÖð½¥ÂýÂýÔö´ó£¬ÔÚ´ÓÉþ×Ó´¦ÓÚ×ÔÈ»³¤¶Èµ½Á½Îï¿éA¡¢B¼´½«»¬¶¯µÄ¹ý³ÌÖУ¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ¡¢£¨¡¡¡¡£©
A¡¢AÊܵ½µÄ¾²Ä¦²ÁÁ¦Ò»Ö±Ôö´óB¡¢BÊܵ½µÄ¾²Ä¦²ÁÁ¦ÏÈÔö´ó£¬ºó±£³Ö²»±äC¡¢AÊܵ½µÄ¾²Ä¦²ÁÁ¦ÊÇÏÈÔö´óºó¼õСD¡¢BÊܵ½µÄºÏÍâÁ¦ÏÈÔö´ó£¬ºó±£³Ö²»±ä

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸