ÌâÄ¿ÄÚÈÝ
ÌƳ¯´óÊ«ÈËÀî°×¸ù¾Ý±±ÎºÉ¢ÎļÒÛªµÀÔª¡°³¯·¢°×µÛ£¬Äºµ½½ÁꡱµÄ¾ä×Óд³Éǧ¹ÅÊ«´Ê£º¡°³¯´Ç°×µÛ²ÊÔƼ䣬ǧÀï½ÁêÒ»ÈÕ»¹£®Á½°¶Ô³ÉùÌ䲻ס£¬ÇáÖÛÒѹýÍòÖØɽ£®¡±ÕâÊ×ÎÒÃǶúÊìÄÜÏê¡¢ëÚÖËÈË¿ÚÊ«¾ä£¬Í¬Ê±Ò²°üº¬×Ų»ÉÙÎïÀí֪ʶ£¬È磺ʫÈËÌýµ½¡°Ô³Éù¡±ÊǸù¾ÝÉùÒôµÄ______À´Åжϵģ»Ê«ÈË˵ÖÛÊÇÔ˶¯µÄ£¬ÊÇÒÔ______Ϊ²ÎÕÕÎïµÄ£¬¸ù¾ÝÊ«¾äÖеġ°Ç§Àï½ÁêÒ»ÈÕ»¹¡±¹ÀËã³öÊ«ÈË×ø´¬´Ó°×µÛµ½½ÁêµÄƽ¾ùËÙ¶ÈÊÇ______km/h£¨Ìáʾ£ºÊ«¾äÖС°Ò»ÈÕ¡±µÄʱ¼äÊÇ12h£©£®
²»Í¬µÄ·¢ÉùÌåËù·¢³öÉùÒôµÄÒôÉ«ÊDz»Í¬µÄ£¬¸ù¾Ý²»Í¬µÄÒôÉ«¿ÉÒÔÅжϲ»Í¬µÄ·¢ÉùÌ壬Ìýµ½Ô³ÉùÊǸù¾ÝÉùÒôµÄÒôÉ«À´Åжϵģ»ÎïÀíѧÀï°ÑÎïÌåλÖõı仯½Ð»úеÔ˶¯»úеÔ˶¯£¬Ò»¸öÎïÌåµÄÔ˶¯×´Ì¬È¡¾öÓÚ²ÎÕÕÎïµÄÑ¡Ôñ£¬Ê«ÈË˵ÖÛÊÇÔ˶¯µÄ£¬ËüÏà¶ÔÓÚɽ»òºÓ°¶µÈÎïÌåÀ´ËµÎ»Ö÷¢ÉúÁ˱仯£¬Òò´ËÊÇÑ¡Ôñɽ»òºÓ°¶À´×÷Ϊ²ÎÕÕÎïµÄ£»´¬µÄƽ¾ùËÙ¶ÈΪ£º
v=
=
=41.7km/h
¹Ê´ð°¸Îª£ºÒôÉ«£»É½»òºÓ°¶µÈ£»41.7km/h
v=
s |
t |
500km |
12h |
¹Ê´ð°¸Îª£ºÒôÉ«£»É½»òºÓ°¶µÈ£»41.7km/h
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÌƳ¯´óÊ«ÈËÀî°×¸ù¾Ý±±ÎºÉ¢ÎļÒÛªµÀÔªµÄ¡°³¯´Ç°×µÛ£¬ÄºËÞ½ÁꡱµÄ¾ä×Ó£¬Ð´³Éǧ¹ÅÃû¾ä£º¡°³¯´Ç°×µÛ²ÊÔƼ䣬ǧÀï½ÁêÒ»ÈÕ»¹¡±£®Ôò¸Ã´¬µÄƽ¾ùËÙ¶ÈÔ¼£¨¡¡¡¡£©
A¡¢41.67km/h | B¡¢83.33km/h | C¡¢20.83km/h | D¡¢166.67km/h |
ÌƳ¯´óÊ«ÈËÀî°×¸ù¾Ý±±ÎºÉ¢ÎļÒÛªµÀÔªµÄ¡°³¯´Ç°×µÛĺËÞ½ÁꡱµÄ¾ä×Óд³Éǧ¹ÅÃû¾ä¡°³¯´Ç°×µÛ²ÊÔƼäǧÀï½ÁêÒ»ÈÕ»¹¡±¡£Ôò¸Ã´¬µÄƽ¾ùËÙ¶ÈÔ¼
A£®20.83km/h | B£®83.33km/h | C£®41.67km/h | D£®166.67km/h |