ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬ÊúÖ±·ÅÖõÄÇᵯ»É£¬Æä¾¢¶ÈϵÊýΪ300N/m£¬Ò»¶Ë¹Ì¶¨ÓÚµØÃ棬ÁíÒ»¶ËÓëÖÊÁ¿Îª2kgµÄÎïÌåB¹Ì¶¨ÔÚÒ»Æð¡£ÏÖÈÃÖÊÁ¿Ò²Îª2kgµÄÎïÌåAÖÃÓÚBµÄÕýÉÏ·½Ä³Ò»¸ß¶È´¦Óɾ²Ö¹×ÔÓÉÏÂÂ䣬AºÍB·¢ÉúÅöײ£¬Åöײʱ¼ä¼«¶Ì£¬ÅöײºóÕ³ÔÚÒ»Æð²»ÔÙ·Ö¿ª¡£ÅöºóA¡¢BºÍµ¯»É×é³ÉÒ»¸öÊúÖ±µ¯»ÉÕñ×Ó£¬ABÔÚÒÔºóÕñ¶¯¹ý³ÌÖе½´ï×î¸ßµãʱµ¯»É¸ÕºÃ´¦ÓÚÔ­³¤×´Ì¬¡£ÒÑÖªµ¯»ÉµÄµ¯ÐÔÊÆÄܱí´ïʽ £¬¼òгÕñ¶¯µÄÖÜÆÚ¹«Ê½£º £¬A¡¢BµÄÌå»ý¶¼¿ÉÒÔºöÂÔ²»¼Æ£¬²»¼Æ¿ÕÆø×èÁ¦£¬gÈ¡ 10 m/s2¡£

£¨1£©Çó£º

¢ÙB¾²Ö¹Ê±µ¯»ÉѹËõÁ¿ £»

¢ÚA×ÔÓÉÏÂÂäʱ¾àÀëBÎïÌåó{¶Èh£»

£¨2£©Ä³Í¬Ñ§ÏëÇó½â´ÓƽºâλÖõ½×îµÍµã¹ý³ÌÖе¯»Éµ¯Á¦¶ÔÕñ×Ó×ö¹¦ÒÔ¼°³åÁ¿´óС£¬ÏÂÃæÊÇËûµÄ½â·¨£ºÕñ×ÓÔÚƽºâλÖÃʱµ¯»Éµ¯Á¦£¬ÔÚ×îµÍµãʱµ¯»Éµ¯Á¦£¬

ÔòÕâ¸ö¹ý³Ìƽ¾ùµ¯Á¦

ÓɱäÁ¦×ö¹¦¹«Ê½£º £¬

ÓɳåÁ¿¹«Ê½£º

ÄãÈÏΪ¸ÃͬѧÕâÑùÇó½â¹¦ºÍ³åÁ¿¶ÔÂð£¿ÈôÕýÈ·£¬ÇëÄãÔÙ¸ø³öÒ»Öֽⷨ£¬Èô²»ÕýÈ·ÇëÄã¸ø³öÕýÈ·µÄ·½·¨(˵³ö½â¾öÎÊÌâËùÓõĹæÂÉ»ò·½·¨£¬²»ÓÃд³ö¾ßÌåµÄ½âÌâ¹ý³Ì£©¡£

¡¾´ð°¸¡¿(1)x0= h =0.2m (2)´ð°¸¼û½âÎö

¡¾½âÎö¡¿(1)ÒÔBΪ¶ÔÏó,Êܵ½ÊúÖ±ÏòϵÄÖØÁ¦ºÍÏòÉϵĵ¯Á¦,ÓÉƽºâ¿ÉµÃ:

´úÈëÊý¾ÝµÃ:

(2) Îï¿éA×ö×ÔÓÉÂäÌåÔ˶¯

ÔÚÅöײ¹ý³ÌÖж¯Á¿Êغã

ÅöºóA¡¢BºÍµ¯»É×é³ÉÒ»¸öÊúÖ±µ¯»ÉÕñ×Ó£¬ABÔÚÒÔºóÕñ¶¯¹ý³ÌÖе½´ï×î¸ßµãʱµ¯»É¸ÕºÃ´¦ÓÚÔ­³¤×´Ì¬,¼´µ¯»ÉÕñ×ÓËÙ¶ÈΪÁãʱ,Ïà¶ÔÓÚÔ­À´ÏòÉÏÔ˶¯Á˾àÀë,ÓÉÄÜÁ¿ÊغãµÃ:

£¨3£©¹¦µÄ½â·¨ÕýÈ·£¬³åÁ¿µÄ½â·¨´íÎó£¬ÒòΪÌâÖмÆËãƽ¾ùµ¯Á¦ÊǶԿռäµÄƽ¾ùÖµ£¬³åÁ¿ÖеÄÁ¦µÄƽ¾ùÖµÓ¦¸ÃÊǶÔʱ¼äµÄƽ¾ùÖµ¡£¶øµ¯»Éµ¯Á¦¶Ôʱ¼ä²»ÊÇÏßÐԱ仯µÄ£¬ËùÒÔ²»ÄÜÄÇÑù×ö£¬Çóµ¯Á¦³åÁ¿Ó¦¸ÃÓö¯Á¿¶¨Àí¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø