ÌâÄ¿ÄÚÈÝ
£¨10·Ö£©£¨1£©¡°Ì½¾¿ºÏÁ¦Óë·ÖÁ¦µÄ¹Øϵ¡±µÄʵÑéÈçÏÂͼ¼×Ëùʾ£¬ÆäÖÐAΪ¹Ì¶¨ÏðƤÌõµÄͼ¶¤£¬PΪÏðƤÌõÓëϸÉþµÄ½áµã¡£ÓÃÁ½°Ñ»¥³É½Ç¶ÈµÄµ¯»É³Ó°Ñ½áµãPÀµ½Î»ÖÃO¡£
¢Ù´Óͼ¼×¿É¶ÁµÃµ¯»É³ÓBµÄʾÊýΪ N¡£
¢ÚΪÁ˸ü׼ȷµÃµ½ºÏÁ¦Óë·ÖÁ¦µÄ¹Øϵ£¬Òª²ÉÓÃ×÷Á¦µÄ £¨Ìͼʾ¡±»ò¡°Ê¾Òâͼ¡±£©À´±íʾ·ÖÁ¦ÓëºÏÁ¦¡£
¢ÛͼÒÒÖз½ÏòÒ»¶¨ÑØAO·½ÏòµÄÁ¦ÊÇ (Ìî¡°F¡±»ò¡°F¡ä¡±)¡£
£¨2£©ÔÚÑо¿µ¯Á¦ºÍµ¯»ÉµÄÐαäÁ¿µÄ¹ØϵµÄʵÑéÖУ¬½«µ¯»Éˮƽ·ÅÖòâ³öÆä×ÔÈ»³¤¶È£¬×÷ΪԳ¤¡£È»ºóÊúÖ±Ðü¹Ò£¬ÔÚÆä϶ËÊúÖ±ÏòÏÂÊ©¼ÓÍâÁ¦F£¬ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐеġ£¼Ç¼ÍâÁ¦FºÍµ¯»ÉµÄÉ쳤Á¿x×÷³öF-xͼÏßÈçÉÏͼËùʾ£¬ÓÉͼ¿ÉÖªµ¯»ÉµÄ¾¢¶ÈϵÊýΪ N/m£¬Í¼Ïß²»¹ý×ø±êÔµãµÄÔÒòÊÇÓÉÓÚ ¡£
£¨1£©¢Ù 3.8N ¢Ú ͼʾ ¢Û F¡¯
£¨2£©¢Ù 200N/m ¢Úµ¯»ÉÔ³¤²âÁ¿´íÎó£¬Ó¦ÎªÊúÖ±Ðü¹ÒʱµÄ×ÔÈ»³¤¶È¡£
¡¾½âÎö¡¿
ÊÔÌâ·ÖÎö£ºÎªÁ˸ü׼ȷµÃµ½ºÏÁ¦Óë·ÖÁ¦µÄ¹Øϵ£¬Òª²ÉÓÃ×÷Á¦Í¼Ê¾À´±íʾ·ÖÁ¦ÓëºÏÁ¦¡£Í¼ÒÒÖÐÒ»¶¨ÑØAO·½ÏòµÄÁ¦ÊÇÔÚ×öʵÑé¹ý³ÌÖÐʵ¼ÊÊ©¼ÓµÄ×÷ÓÃÁ¦¡£F£xͼÏóµÄбÂʶÔÓ¦µ¯»ÉµÄ¾¢¶ÈϵÊýΪ200N/m£¬Í¼Ïó²»¹ýÔµãÊǵ¯»ÉÔ³¤²âÁ¿´íÎ󣬵±ÊúÖ±Ðü¹ÒʱÓÉÓÚµ¯»É×ÔÉíµÄÖØÁ¦£¬µ¯»ÉÓÐÒ»¶¨µÄÉ쳤Á¿£¬Ó¦ÎªÊúÖ±Ðü¹ÒʱµÄ×ÔÈ»³¤¶È¡£
¿¼µã£º±¾Ì⿼²éÑéÖ¤Á¦µÄƽµÈËıßÐζ¨Ôò¡¢ºú¿Ë¶¨ÂÉ¡£