ͼ¼×ËùʾÊÇij¹¤³§³ÉÆ·°ü×°³µ¼äµÄ¹â´«¸Ð¼Ç¼Æ÷£¬¹âÃôµç×èR1ÄܽÓÊÕµ½·¢¹âÔª¼þA·¢³öµÄ¹â£¬Ã¿µ±¹¤¼þµ²×¡A·¢³öµÄ¹â£¬¹â´«¸ÐÆ÷B¾ÍÊä³öÒ»¸öµçÐźţ¬²¢¾­ÐźŴ¦ÀíÆ÷´¦ÀíºóÔÚÆÁÄ»ÉÏÏÔʾ³öµçÐźÅÓëʱ¼äµÄ¹Øϵ£¬ÈçͼÒÒËùʾ£®Èô´«ËÍ´ø±£³ÖÔȼÓËÙÔ˶¯£¬Ã¿¸ö¹¤¼þ¾ùÏà¶Ô´«ËÍ´ø¾²Ö¹£¬ÇÒÏàÁÚ¹¤¼þ¼ä¾àÒÀ´ÎΪ5¡¢10¡¢15¡¢20¡­£¨µ¥Î»£ºcm£©£®£¨¹¤¼þµ²×¡µÄʱ¼ä¼«¶Ì£©

¾«Ó¢¼Ò½ÌÍø

£¨1£©¹¤¼þµÄ¼ÓËÙ¶ÈΪ______m/s2£®
£¨2£©µ±ÎÞ¹âÕÕÉäR1ʱ£¬¹â´«¸ÐÆ÷¾ÍÊä³öÒ»´Î______µçѹ£¨Ìî¸ß»òµÍ£©
£¨1£©ÓÉÌâÒâÖª£¬¹¤¼þ×öÔȱäËÙÖ±ÏßÔ˶¯ÇÒÏàÁÚ¹¤¼þ¼ä¾àÒÀ´ÎΪ5¡¢10¡¢15¡¢20¡­£¬ÓÐͼÒÒÖªÏàÁÚʱ¼ä¼ä¸ôΪT=0.5s£¬¡÷s=aT2£¬µÃ£ºa=
¡÷s
T2
=
0.05
0£®52
=0.2 s
    £¨2£©¹âÃôµç×èµÄÌص㣬ÓйâÕÕÉäµç×è½ÏС£¬ÎÞ¹âÕÕÉäµç×è½Ï´ó£¬¸ù¾Ýµç·Á¬½Ó¹Øϵ֪µ±ÎÞ¹âÕÕÉäR1ʱ£¬µç×è½Ï´ó£¬·Öѹ½Ï´ó£¬R2·Öѹ½ÏС£¬¹Ê¹â´«¸ÐÆ÷¾ÍÊä³öÒ»´ÎµÍµçѹ£®
¹Ê´ð°¸Îª£º0.2s   µÍ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÀûÓùâÃôµç×èÖÆ×÷µÄ¹â´«¸ÐÆ÷£¬¼Ç¼ÁË´«ËÍ´øÉϹ¤¼þµÄÊäËÍÇé¿ö£¬Èçͼ¼×ËùʾΪij¹¤³§³ÉÆ·°ü×°³µ¼äµÄ¹â´«¸Ð¼Ç¼Æ÷£¬¹â´«¸ÐÆ÷BÄܽÓÊÕµ½·¢¹âÔª¼þA·¢³öµÄ¹â£¬Ã¿µ±¹¤¼þµ²×¡A·¢³öµÄ¹âʱ£¬¹â´«¸ÐÆ÷¾ÍÊä³öÒ»¸öµçÐźţ¬²¢ÔÚÆÁÄ»ÉÏÏÔʾ³öµçÐźÅÓëʱ¼äµÄ¹Øϵ£¬ÈçͼÒÒËùʾ£®Èô´«ËÍ´øʼÖÕÔÈËÙÔ˶¯£¬Ã¿Á½¸ö¹¤¼þ¼äµÄ¾àÀëΪ0.2m£¬ÔòÏÂÊö˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ͼ¼×ËùʾÊÇij¹¤³§³ÉÆ·°ü×°³µ¼äµÄ¹â´«¸Ð¼Ç¼Æ÷£¬¹âÃôµç×èR1ÄܽÓÊÕµ½·¢¹âÔª¼þA·¢³öµÄ¹â£¬Ã¿µ±¹¤¼þµ²×¡A·¢³öµÄ¹â£¬¹â´«¸ÐÆ÷B¾ÍÊä³öÒ»¸öµçÐźţ¬²¢¾­ÐźŴ¦ÀíÆ÷´¦ÀíºóÔÚÆÁÄ»ÉÏÏÔʾ³öµçÐźÅÓëʱ¼äµÄ¹Øϵ£¬ÈçͼÒÒËùʾ£®Èô´«ËÍ´ø±£³ÖÔȼÓËÙÔ˶¯£¬Ã¿¸ö¹¤¼þ¾ùÏà¶Ô´«ËÍ´ø¾²Ö¹£¬ÇÒÏàÁÚ¹¤¼þ¼ä¾àÒÀ´ÎΪ5¡¢10¡¢15¡¢20¡­£¨µ¥Î»£ºcm£©£®£¨¹¤¼þµ²×¡µÄʱ¼ä¼«¶Ì£©

£¨1£©¹¤¼þµÄ¼ÓËÙ¶ÈΪ
0.2
0.2
m/s2£®
£¨2£©µ±ÎÞ¹âÕÕÉäR1ʱ£¬¹â´«¸ÐÆ÷¾ÍÊä³öÒ»´Î
µÍ
µÍ
µçѹ£¨Ìî¸ß»òµÍ£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011-2012ѧÄ긣½¨Ê¡ÈªÖÝÊÐÑøÕýÖÐѧ¡¢»Ý°²Ò»ÖС¢°²ÏªÒ»ÖÐÁª¿¼¸ß¶þ£¨Ï£©ÆÚÖÐÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ͼ¼×ËùʾÊÇij¹¤³§³ÉÆ·°ü×°³µ¼äµÄ¹â´«¸Ð¼Ç¼Æ÷£¬¹âÃôµç×èR1ÄܽÓÊÕµ½·¢¹âÔª¼þA·¢³öµÄ¹â£¬Ã¿µ±¹¤¼þµ²×¡A·¢³öµÄ¹â£¬¹â´«¸ÐÆ÷B¾ÍÊä³öÒ»¸öµçÐźţ¬²¢¾­ÐźŴ¦ÀíÆ÷´¦ÀíºóÔÚÆÁÄ»ÉÏÏÔʾ³öµçÐźÅÓëʱ¼äµÄ¹Øϵ£¬ÈçͼÒÒËùʾ£®Èô´«ËÍ´ø±£³ÖÔȼÓËÙÔ˶¯£¬Ã¿¸ö¹¤¼þ¾ùÏà¶Ô´«ËÍ´ø¾²Ö¹£¬ÇÒÏàÁÚ¹¤¼þ¼ä¾àÒÀ´ÎΪ5¡¢10¡¢15¡¢20¡­£¨µ¥Î»£ºcm£©£®£¨¹¤¼þµ²×¡µÄʱ¼ä¼«¶Ì£©

£¨1£©¹¤¼þµÄ¼ÓËÙ¶ÈΪ______m/s2£®
£¨2£©µ±ÎÞ¹âÕÕÉäR1ʱ£¬¹â´«¸ÐÆ÷¾ÍÊä³öÒ»´Î______µçѹ£¨Ìî¸ß»òµÍ£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÆÚÄ©Ìâ ÌâÐÍ£ºÊµÑéÌâ

ͼ¼×ËùʾÊÇij¹¤³§³ÉÆ·°ü×°³µ¼äµÄ¹â´«¸Ð¼Ç¼Æ÷£¬¹âÃôµç×èR1ÄܽÓÊÕµ½·¢¹âÔª¼þA·¢³öµÄ¹â£¬Ã¿µ±¹¤¼þµ²×¡A·¢³öµÄ¹â£¬¹â´«¸ÐÆ÷B¾ÍÊä³öÒ»¸öµçÐźţ¬²¢¾­ÐźŴ¦ÀíÆ÷´¦ÀíºóÔÚÆÁÄ»ÉÏÏÔʾ³öµçÐźÅÓëʱ¼äµÄ¹Øϵ£¬ÈçͼÒÒËùʾ¡£Èô´«ËÍ´ø±£³ÖÔȼÓËÙÔ˶¯£¬Ã¿¸ö¹¤¼þ¾ùÏà¶Ô´«ËÍ´ø¾²Ö¹£¬ÇÒÏàÁÚ¹¤¼þ¼ä¾àÒÀ´ÎΪ5¡¢10¡¢15¡¢20¡­¡­£¨µ¥Î»£ºcm£©¡££¨¹¤¼þµ²×¡µÄʱ¼ä¼«¶Ì£©
£¨1£©¹¤¼þµÄ¼ÓËÙ¶ÈΪ___________m/s2£»
£¨2£©µ±ÎÞ¹âÕÕÉäR1ʱ£¬¹â´«¸ÐÆ÷¾ÍÊä³öÒ»´Î___________µçѹ£¨Ìî¸ß»òµÍ£©¡£

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸