Question

2£®ÈçͼËùʾÊDzâÁ¿Ð¡³µÑØбÃæÏ»¬µÄƽ¾ùËٶȵÄʵÑ飮

£¨1£©¸ÃʵÑéÄ¿µÄÊÇÁ·Ï°Óÿ̶ȳߡ¢Í£±í²âƽ¾ùËٶȣ®
£¨2£©¸ÃʵÑéÔ­ÀíÊÇv$\frac{s}{t}$£®
£¨3£©ÊµÑéʱ¹Û²ìµ½£¬Ð¡³µÑØбÃ涥¶ËÏ»¬µ½Ð±Ãæµ×¶ËµÄÔ˶¯ÊDZäËÙÖ±ÏßÔ˶¯£®£¨Ñ¡Ìî¡°ÔÈËÙ¡±»ò¡°±äËÙ¡±£©
£¨4£©ÊµÑéÖвâµÃ·³Ìs₁ÉϵÄƽ¾ùËÙ¶ÈΪv₁£¬Â·³Ìs₂ÉϵÄƽ¾ùËÙ¶ÈΪv₂£¬Â·³Ìs₃ÉϵÄƽ¾ùËÙ¶ÈΪv₃£®ÄÇô£¬v₁¡¢v₂¡¢v₃µÄ´óС¹ØϵÊÇv₃£¾v₁£¾v₂£¨Ñ¡Ì¡¢£¼¡¢=£©
£¨5£©Ð¡³µËù·ÅµÄбÃæÓ¦±£³Ö½ÏС  £¨ÌС¡±»ò¡°´ó¡±£©µÄƶȣ¬ÕâÑùС³µÔÚбÃæÉÏÔ˶¯µÄʱ¼ä»á½Ï³¤ £¨Ìî¡°³¤¡±»ò¡°¶Ì¡±£©£¬±ãÓÚ²âÁ¿Ê±¼ä£®
£¨6£©ÔÚ²âÁ¿¹ý³ÌÖУ¬·¢ÏÖÏÂÂäʱ¼ä½ÏÄѲâ³ö£¬¿É²ÉÓõĴëÊ©ÊDZ£³ÖбÃæ½ÏСµÄƶȣ®

Answer 1

·ÖÎö £¨1£©ÔÚÓÃбÃæС³µ²âÁ¿Æ½¾ùËٶȵÄʵÑéÖУ¬Òª²âÁ¿Ð¡³µÔ˶¯µÄ·³ÌºÍʱ¼ä£¬Óõ½¿Ì¶È³ßºÍÃë±í£¬²¢´úÈ빫ʽv=$\frac{s}{t}$½øÐмÆË㣻
£¨2£©Ð¡³µÔÚÏ»¬¹ý³ÌÖУ¬ËÙ¶ÈÖð½¥±ä´ó£®
£¨3£©Ð¡³µÔÚÏ»¬¹ý³ÌÖУ¬ËÙ¶ÈÖð½¥±ä´ó£¬ÓÉ´Ë¿ÉÒÔÅжϳö¸÷¶Îƽ¾ùËٶȵĴóС
£¨4£©Èç¹ûбÃæÌ«¸ß£¬ÎïÌåÔ˶¯Ê±¼äÌ«¶Ì£¬²»ÈÝÒ×¼Æʱ£®

½â´ð ½â£º£¨1£©ÊµÑéÖÐÒªÓÿ̶ȳ߲âÁ¿Ð¡³µÔ˶¯µÄ·³Ì£¬ÓÃÍ£±í²âÁ¿Ð¡³µÔ˶¯µÄʱ¼ä£»
£¨2£©ÊµÑéÖÐÒªÀûÓù«Ê½v=$\frac{s}{t}$¼ÆËãС³µÆ½¾ùËٶȣ»
£¨3£©Ð¡³µÑØбÃ涥¶ËÏ»¬µ½Ð±Ãæµ×¶ËµÄÔ˶¯Ê±£¬ËÙ¶ÈÔ½À´Ô½´ó£¬Òò´ËÊDZäËÙÖ±ÏßÔ˶¯£»
£¨4£©ÓÉÓÚС³µÔÚÏ»¬¹ý³ÌÖÐ×ö¼ÓËÙÔ˶¯£¬ËùÒÔÉÏ°ë¶ÎµÄƽ¾ùËÙ¶È×îС£¬Ï°ë¶ÎµÄƽ¾ùËÙ¶È×î´ó£¬È«³ÌµÄƽ¾ùËٶȾÓÖУ»
£¨5£©Ð±ÃæµÄƶȽÏС£¬Ð¡³µÔ˶¯ËٶȽÏÂý£¬Ô˶¯Ê±¼ä½Ï³¤£¬±ãÓÚ¼Æʱ£®±ÜÃâбÃæÌ«¸ßʱ£¬Ð¡³µÔ˶¯ËÙ¶ÈÌ«´ó£¬Ô˶¯Ê±¼äÌ«¶Ì£¬ÄÑÒÔ²âÁ¿£»
£¨6£©Ð±ÃæƶÈÔ½´ó£¬Ð¡³µÑØбÃæÏòϼÓËÙÔ˶¯Ô½¿ì£¬¹ýijµãµÄʱ¼ä»áÔ½¶Ì£¬¼Æʱ»áÔ½À§ÄÑ£¬ËùÒÔΪʹ¼Æʱ·½±ã£¬±£³ÖбÃæ½ÏСµÄƶȣ®
¹Ê´ð°¸Îª£º£¨1£©¿Ì¶È³ß£»Í£±í£»£¨2£©v=$\frac{s}{t}$£¨3£©±äËÙ£»£¨4£©v₃£¾v₁£¾v₂£»£¨5£©Ð¡£»³¤£»Ê±¼ä£»£¨6£©±£³ÖбÃæ½ÏСµÄƶȣ®

µãÆÀ ²âС³µµÄƽ¾ùËٶȡ±µÄʵÑ飬¹Ø¼üÊÇÖªµÀʵÑéÔ­ÀíºÍ·½·¨£¬»á¸ù¾Ýƽ¾ùËٶȵĹ«Ê½v=$\frac{s}{t}$±È½Ïƽ¾ùËٶȵĴóС£®