ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿²âÁ¿Ð¡³µÆ½¾ùËٶȵÄʵÑ飺
£¨1£©¸ÃʵÑéÔÀíÊÇ______________________________¡£
£¨2£©ÔÚʵÑéÖÐ×¼±¸ÁËС³µ¡¢½ðÊôƬ¡¢Ä¾¿é¡¢Ð±Ã棬»¹ÐèÒªÆ÷²Ä____________ºÍ___________¡£
£¨3£©ÊµÑéÈçͼËùʾ£¬Ð¡³µ´ÓбÃ涥¶ËÔ˶¯µ½µ×¶ËµÄ·³Ìs=________m£¬ÔòʵÑéÖÐС³µÍ¨¹ýÈ«³ÌµÄƽ¾ùËÙ¶ÈΪ_________m/s£¬Ð¡³µÍ¨¹ýBC¶Î·³ÌµÄƽ¾ùËÙ¶ÈΪ__________m/s£¬Ð¡³µÔÚÕû¸öÔ˶¯ÖÐ×ö________Ô˶¯¡£
£¨4£©ÊµÑé¹ý³ÌÖУ¬ÎªÁ˱ãÓÚ²âÁ¿Ð¡³µÔ˶¯µÄʱ¼ä£¬Ð±ÃæµÄƶÈÓ¦____________£¨Ìî¡°»ºÒ»Ð©¡±»ò¡°¶¸Ò»Ð©¡±£©¡£Èôij´Î²âÁ¿ÖУ¬Ð¡³µ¹ýÁËAµã¿ªÊ¼¼Æʱ£¬ÔòËù²âÈ«³ÌµÄƽ¾ùËÙ¶ÈÆ«____£¨Ìî¡°´ó¡±»ò¡°Ð¡¡±£©¡£
¡¾´ð°¸¡¿ v=s/t ¿Ì¶È³ß Ãë±í£¨Í£±í£© 0.8 0.16 0.2 ±äËÙ »ºÒ»Ð© ´ó
¡¾½âÎö¡¿£¨1£©´ËʵÑéµÄʵÑéÔÀíÊÇ£ºv=s/t£»
£¨2£©¸ù¾ÝÌâÒâÖªµÀ£¬ÐèÒªÓÿ̶ȳ߲âÁ¿Ð¡³µÔ˶¯µÄ·³Ì£¬ÓÃÃë±í²âÁ¿Ð¡³µÔ˶¯µÄʱ¼ä£¬ËùÒÔÓõ½µÄ²âÁ¿¹¤¾ß»¹Ó¦ÓÐÃë±í£»
£¨3£©ÓɱíÖÐÊý¾ÝÖª£¬Ð¡³µÍ¨¹ýÈ«³ÌÓõÄʱ¼äºÍ·³Ì£ºt=5s£¬s=0.8m£¬È«³ÌµÄƽ¾ùËٶȣºv=s/t=0.8m/5s=0.16m/s£»BC¶ÎµÄ·³ÌΪs'=0.4m£»ËùÓõÄʱ¼äΪt'=2s£»BC¶ÎµÄƽ¾ùËÙ¶ÈΪv'=s¡ä/t¡ä=0.4m/2s=0.2m/s£»Ð¡³µÔÚͨ¹ýÏàͬµÄ·³Ìʱ£¬ËùÓõÄʱ¼ä²»Í¬£¬Â·³ÌÏàͬ£¬Ê±¼äԽС£¬ËÙ¶ÈÔ½´ó£¬¹ÊС³µ×ö±äËÙÔ˶¯£»
£¨4£©ÎªÁË°Ñ·³ÌºÍʱ¼ä²âÁ¿µÄÕý׼ȷ£¬ÐèʹбÃæµÄƶȻºÒ»Ð©£¬ÕâÑù¿ÉÒÔÈÃС³µÔ˶¯ËٶȽÏÂý£¬²¢ÇÒʹС³µÔ˶¯¾àÀë½Ï³¤£¬ÕâÑùËٶȺÍʱ¼äµÄ²âÁ¿Îó²î¶¼»áСЩ£¬Èôij´Î²âÁ¿ÖУ¬Ð¡³µ¹ýÁËAµã¿ªÊ¼¼Æʱ£¬»áʹ²âµÃµÄʱ¼ä±äС£¬ÓÉv=s/t¿ÉÖª£¬ËٶȻá±ä´ó¡£