ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿Èçͼ1Ëùʾ£¬´òµã¼ÆʱÆ÷¹Ì¶¨ÔÚбÃæµÄij´¦£¬ÈÃÒ»»¬¿éÍÏ×Å´©¹ý´òµã¼ÆʱÆ÷µÄÖ½´ø´ÓбÃæÉÏ»¬Ï¡£Í¼2ÊÇijͬѧʵÑéʱ´ò³öµÄijÌõÖ½´øµÄÒ»¶Î¡£

£¨1£©ÒÑÖª´òµã¼ÆʱÆ÷ʹÓõĽ»Á÷µçƵÂÊΪ50Hz£¬ÀûÓøÃÖ½´øÖвâ³öµÄÊý¾Ý¿ÉµÃ»¬¿éÏ»¬µÄ¼ÓËٶȴóСa = _______________ m/s2¡£

£¨2£©´òµã¼ÆʱÆ÷´òBµãʱ£¬»¬¿éµÄËٶȴóСvB = _______________ m/s¡£

£¨3£©ÎªÁ˲â³ö»¬¿éÓëбÃæ¼äµÄĦ²ÁÁ¦£¬¸ÃͬѧÒѾ­²â³öбÃæµÄ³¤¶Èl¼°¸ß¶Èh£¬Ëû»¹ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÊÇ ______________ £¬ÀûÓòâµÃµÄÁ¿¼°¼ÓËÙ¶Èa±íʾĦ²ÁÁ¦µÄ´óСf = ______________ ¡£

¡¾´ð°¸¡¿ 4.0 2.16 »¬¿éÖÊÁ¿

¡¾½âÎö¡¿ÊÔÌâ·ÖÎö£º£¨1£©ÓÉͼÒÒÖеÄÖ½´ø¿ÉÖªÏàÁÚµÄ2¸ö¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôt=2¡Á0.02s=0.04s£¬

¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯µÄÍÆÂÛ£®

£¨2£©¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯µÄÒ»¶Î¹ý³ÌÖмäʱ¿ÌËٶȵÈÓÚƽ¾ùËٶȵãº

£¨3£©¶ÔС³µ½øÐÐÊÜÁ¦·ÖÎö£¬Ð¡³µÊÜÖØÁ¦¡¢Ö§³ÖÁ¦¡¢×èÁ¦£®

½«ÖØÁ¦ÑØбÃæºÍ´¹Ö±Ð±Ãæ·Ö½â£¬ÉèбÃæÇã½ÇΪ¦È£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨Âɵãº

FºÏ=mgsin¦È-f=ma£¬f=mgsin¦È-ma£¬

¸ÃͬѧÒѾ­²â³öбÃæµÄ³¤¶Èl¼°¸ß¶Èh£¬¼´

ËùÒÔÎÒÃÇÒªÇó³ö»¬¿éÖÊÁ¿m£¬ËùÒÔ£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø