ÌâÄ¿ÄÚÈÝ

µç×Ǫ́³Ó·ÅÖÃÓÚˮƽ×ÀÃæÉÏ£¬Ò»ÖÊÁ¿ÎªMµÄ¿ò¼Ü·ÅÔŲ́³ÓÉÏ£¬¿ò¼ÜÄÚÓÐÒ»Çᵯ»ÉÉ϶˹̶¨ÔÚ¿ò¼Ü¶¥²¿£¬Ï¶Ëϵһ¸öÖÊÁ¿ÎªmµÄÎïÌ壬ÎïÌåÏ·½ÓÃÊúֱϸÏßÓë¿ò¼Üϲ¿¹Ì¶¨£¬¸÷ÎïÌ嶼´¦ÓÚ¾²Ö¹×´Ì¬¡£½ñ¼ô¶ÏϸÏߣ¬ÎïÌ忪ʼÕñ¶¯£¬ÇÒ¿ò¼ÜʼÖÕûÓÐÀ뿪̨³Ó£¬µ¯»É²»³¬³öµ¯ÐÔÏ޶ȣ¬¿ÕÆø×èÁ¦ºöÂÔ²»¼Æ£¬ÖØÁ¦¼ÓËÙ¶ÈΪg¡£ÔòÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ


  1. A.
    µ±Ì¨³ÓʾÊý×îСʱµ¯»ÉÒ»¶¨´¦ÓÚÔ­³¤Î»ÖÃ
  2. B.
    µ±Ì¨³ÓʾÊý×îСʱÎïÌåÒ»¶¨´¦ÔÚƽºâλÖÃ
  3. C.
    Õñ¶¯¹ý³ÌÖÐ̨³ÓµÄ×î´óʾÊýÒ»¶¨´óÓÚ£¨M + m£©g
  4. D.
    Õñ¶¯¹ý³ÌÖÐ̨³ÓµÄ×î´óʾÊýÒ»¶¨µÈÓÚ£¨M + m£©g
C
ÊÔÌâ·ÖÎö£ºµ±ÎïÌåÓÐÏòϵÄ×î´ó¼ÓËÙ¶Èʱ£¬Ê§ÖØ×î´ó£¬´Ëʱ̨³ÓʾÊý×îС£¬ËùÒÔµ±Ì¨³ÓʾÊý×îСʱÎïÌå´¦ÓÚ×î¸ßµã£»Õñ¶¯¹ý³ÌÖÐ̨³ÓÓÐ×î´óʾÊýʱ£¬Îï¿éÒ»¶¨ÓÐÏòÉϵÄ×î´ó¼ÓËٶȣ¬´ËʱÎï¿éÔÚ×îµÍµã£¬µ¯»ÉµÄµ¯Á¦´óÓÚmg£¬ËùÒǪ̂³ÓµÄʾÊýÒ»¶¨´óÓÚ£¨M + m£©g¡£Ñ¡ÏîCÕýÈ·¡£
¿¼µã£ºµ¯»ÉÕñ×ÓµÄÕñ¶¯¼°³¬ÖØʧÖØ¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø