ÌâÄ¿ÄÚÈÝ
ÔÚ¡°Ì½¾¿µ¯Á¦ºÍµ¯»ÉÉ쳤µÄ¹Øϵ¡±µÄʵÑéÖУ¬Ä³Í¬Ñ§²ÉÓõÄʵÑé×°ÖÃÈçÏÂͼËùʾ£¬µ¯»Éµ¯Á¦µÄ´óСµÈÓÚËù¹Ò¹³ÂëµÄÖØÁ¦´óС¡£ÊµÑéʱÏȲâ³ö²»¹Ò¹³Âëʱµ¯»ÉµÄ×ÔÈ»³¤¶ÈL0£¬ÔÙ½«5¸ö¹³ÂëÖð¸ö¹ÒÔÚÉþ×ÓµÄ϶ˣ¬Ã¿´Î²â³öÏàÓ¦µÄµ¯»É×ܳ¤¶ÈL£¬×ܹ²»ñµÃÁË6×éʵÑéÊý¾Ý¡£
£¨1£©¸Ãͬѧ°Ñ6×éÊý¾Ý¶ÔÓ¦µÄµã±êÔÚͼÏñÖУ¬ÇëÄã¸ù¾ÝÕâЩÊý¾Ýµã×÷³öF£LͼÏߣ»
£¨2£©ÓÉ´ËͼÏß¿ÉÒԵóö¸Ãµ¯»ÉµÄ×ÔÈ»³¤¶ÈL0£½________cm£¬¾¢¶ÈϵÊýk£½________ N/m(¼ÆËã½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö)£»
£¨3£©¸ÃͬѧʵÑéʱ°Ñµ¯»Éˮƽ·ÅÖã¬Ó뵯»ÉÊúÖ±Ðü¹ÒÏà±È½Ï£º
ÓŵãÊÇ________________________£»
ȱµãÊÇ________________________¡£
Ò»Á¾Æû³µ´Ó¼×µØ¿ªÍùÒҵأ¬Óɾ²Ö¹¿ªÊ¼ÏÈ×öÔȼÓËÙÖ±ÏßÔ˶¯£¬È»ºó×öÔÈËÙÖ±ÏßÔ˶¯£¬×îºó×öÔȼõËÙÖ±ÏßÔ˶¯£¬µ±ËٶȼõΪÁãʱ¸ÕºÃµ½´ïÒҵء£´ÓÆû³µÆô¶¯¿ªÊ¼¼Æʱ£¬Ï±í¸ø³öÁËijЩʱ¿ÌÆû³µµÄ˲ʱËٶȡ£ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
ʱ¿Ì£¨s£© | 1.0 | 2.0 | 3.0 | 5.0 | 7.0 | 9.5 | 10.5 |
Ëٶȣ¨m/s£© | 3.0 | 6.0 | 9.0 | 12.0 | 12.0 | 9.0 | 3.0 |
A. Æû³µÔȼÓËÙÖ±ÏßÔ˶¯¾ÀúµÄʱ¼äΪ3.0s
B. Æû³µÔȼÓËÙÖ±ÏßÔ˶¯¾ÀúµÄʱ¼äΪ5.0s
C. Æû³µÔȼõËÙÖ±ÏßÔ˶¯¾ÀúµÄʱ¼äΪ4.0s
D. Æû³µÔȼõËÙÖ±ÏßÔ˶¯¾ÀúµÄʱ¼äΪ2.0s