ÌâÄ¿ÄÚÈÝ

£¨Ä³Í¬Ñ§ÔÚ¡°Óôòµã¼ÆʱÆ÷²âËٶȡ±µÄʵÑéÖУ¬Óôòµã¼ÆʱÆ÷¼Ç¼Á˱»Ð¡³µÍ϶¯µÄÖ½´øµÄÔ˶¯Çé¿ö£¬ÔÚÖ½´øÉÏÈ·¶¨³ö0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6¹²7¸ö²âÁ¿µã£®ÆäÏàÁÚµã¼äµÄ¾àÀëÈçͼËùʾ£¬Ã¿Á½¸öÏàÁڵIJâÁ¿µãÖ®¼äµÄʱ¼ä¼ä¸ôΪ0.10s£¬Íê³ÉÏÂÃæÎÊÌ⣮

£¨1£©¸ù¾Ý´òµã¼ÆʱÆ÷´ò³öµÄÖ½´ø£¬ÎÒÃÇ¿ÉÒÔÖ±½ÓµÃµ½µÄÎïÀíÁ¿ÊÇ______
A£®Ê±¼ä¼ä¸ôB£®Î»ÒÆ
C£®Ë²Ê±ËÙ¶ÈD£®Æ½¾ùËÙ¶È
£¨2£©Ð¡³µµÄ¼ÓËÙ¶Èa=______m/s2£®
£¨1£©ÎÒÃÇ¿ÉÒÔÖ±½Ó´ÓÖ½´øÉϵõ½µÄÎïÀíÁ¿ÊÇʱ¼ä¼ä¸ô£¬ÒòΪÿÁ½¸öµã¼äµÄʱ¼ä¼ä¸ôÊÇ0.02Ã룮
¿ÉÒÔÓÿ̶ȳßÁ¿³öÁ½µã¼ä¾à£¬¿ÉÒÔÖ±½ÓµÃµ½Î»ÒÆ£®
¹ÊÑ¡AB£»
£¨2£©ÓÉͼÏó¿ÉÖª£ºx1=0.014m£»x2=0.033-0.014=0.019m£»x3=0.0568-0.033=0.0238m£»x4=0.0856-0.0568=0.0288m
x5=0.1195-0.0856=0.0339m£»x6=0.1582-0.1195=0.0387m
¸ù¾Ý×÷²î·¨µÃ£º
a=
x6+x5+x4-x3-x2-x1
9T2
=
0.0387+0.0339+0.0288-0.0238-0.019-0.014
9¡Á0.12
=0.5m/s2
¹Ê´ð°¸Îª£º£¨1£©AB£»£¨2£©0.5£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø