ÌâÄ¿ÄÚÈÝ

4£®ÈçͼËùʾ£¬Çᵯ»ÉµÄÁ½¶Ë¸÷ÊÜ50NÀ­Á¦F×÷Óã¬Îȶ¨ºóµ¯»ÉÉ쳤ÁË10cm£»£¨ÔÚµ¯ÐÔÏÞ¶ÈÄÚ£©£»ÄÇôÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýk=1000N/m
B£®¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýk=500N/m
C£®Èô½«¸Ãµ¯»ÉµÄ×ó¶Ë¹Ì¶¨£¬Ö»ÔÚÓÒ¶ËÊ©¼Ó50NÀ­Á¦F×÷Óã¬ÔòÎȶ¨ºóµ¯»É½«É쳤5cm
D£®¸ù¾Ý¹«Ê½k=$\frac{F}{x}$£¬µ¯»ÉµÄ¾¢¶ÈϵÊýk½«»áËæµ¯»Éµ¯Á¦FµÄÔö´ó¶øÔö´ó

·ÖÎö Çᵯ»ÉµÄÁ½¶Ë¸÷ÊÜ50NÀ­Á¦FµÄ×÷Ó㬵¯»ÉµÄµ¯Á¦Îª50N£¬µ¯»ÉƽºâʱÉ쳤ÁË10cm£¬¸ù¾Ýºú¿Ë¶¨ÂÉF=kxÇó½âµ¯»ÉµÄ¾¢¶ÈϵÊý£®µ¯»ÉµÄ¾¢¶ÈϵÊýÓɵ¯»É±¾ÉíµÄÐÔÖʾö¶¨£¬Ó뵯Á¦FÎ޹أ®

½â´ð ½â£ºAB¡¢ÓÉÌâÖª£¬µ¯»ÉµÄµ¯Á¦ F=50N£¬É쳤Á¿ x=10cm=0.1m£¬¸ù¾Ýºú¿Ë¶¨ÂÉF=kxµÃ
µ¯»ÉµÄ¾¢¶ÈϵÊý k=$\frac{F}{x}$=500N/m£®¹ÊA´íÎó£¬BÕýÈ·£®
C¡¢Èô½«¸Ãµ¯»ÉµÄ×ó¶Ë¹Ì¶¨£¬Ö»ÔÚÓÒ¶ËÊ©¼Ó50NÀ­Á¦F×÷Ó㬵¯»ÉËùÊܵÄÀ­Á¦ÈÔΪ50N£¬ËùÒÔµ¯»ÉÉ쳤ÈÔΪ10cm£®¹ÊC´íÎó£®
D¡¢µ¯»ÉµÄÉ쳤ÓëÊܵÄÀ­Á¦³ÉÕý±È£¬µ¯»ÉµÄ¾¢¶ÈϵÊýkÓ뵯»Éµ¯Á¦FµÄ±ä»¯Î޹أ¬Ó뵯»É±¾ÉíÓйأ®¹ÊD´íÎó
¹ÊÑ¡£ºB

µãÆÀ µ¯»ÉµÄµ¯Á¦ÓëÐαäÁ¿Ö®¼äµÄ¹ØÏµ×ñÊØºú¿Ë¶¨ÂÉ£®¹«Ê½F=kxÖУ¬xÊǵ¯»ÉÉ쳤µÄ³¤¶È»òѹËõµÄ³¤¶È£¬¼´Êǵ¯»ÉµÄÐαäÁ¿£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø