¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ±íʾÁ½ÁÐÏà¸ÉË®²¨µÄµþ¼ÓÇé¿ö£¬Í¼ÖеÄʵÏß±íʾ²¨·å£¬ÐéÏß±íʾ²¨¹È£®ÉèÁ½Áв¨µÄÕñ·ù¾ùΪ5cm£¬ÇÒÔÚͼʾµÄ·¶Î§ÄÚÕñ·ù²»±ä£¬²¨ËٺͲ¨³¤·Ö±ðΪ1m/sºÍ0.5m£®CµãÊÇBEÁ¬ÏßµÄÖе㣬ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢´ÓͼʾµÄʱ¿ÌÆð¾­0.25sºó£¬B´¦Öʵãͨ¹ýµÄ·³ÌΪ20cmB¡¢´ÓͼʾµÄʱ¿ÌÆð¾­0.25sºó£¬A´¦ÖʵãµÄλÒÆΪ0C¡¢Í¼Ê¾Ê±¿ÌC´¦ÖʵãÕý´¦ÔÚƽºâλÖÃÇÒÏò²¨·åÔ˶¯D¡¢Í¼Ê¾Ê±¿ÌA¡¢BÁ½´¦ÖʵãµÄÊúÖ±¸ß¶È²îΪ20cm
·ÖÎö£ºÆµÂÊÏàͬµÄÁ½ÁÐË®²¨µÄµþ¼Ó£ºµ±²¨·åÓ벨·å¡¢¿É²¨¹ÈÓ벨¹ÈÏàÓöʱÕñ¶¯ÊǼÓÇ¿µÄ£»µ±²¨·åÓ벨¹ÈÏàÓöʱÕñ¶¯ÊǼõÈõµÄ£®
½â´ð£º½â£ºA¡¢²¨µÄÖÜÆÚT=
¦Ë
v
=
0.5
1
s=0.5s
£¬Í¼Ê¾Ê±¿Ì£¬BÖʵ㴦ÓÚ²¨¹ÈλÖ㬴ÓͼʾµÄʱ¿ÌÆð¾­0.25sºó£¬¼´¾­¹ý¶þ·ÖÖ®Ò»¸öÖÜÆÚ£¬µ½´ï²¨·åλÖã¬Â·³Ìs=4A=20cm£¬Î»ÒƲ»ÎªÁ㣮¹ÊAÕýÈ·£¬B´íÎó£®
C¡¢CµãÊÇBEÁ¬ÏßµÄÖе㣬´¦ÓÚƽºâλÖã¬Ïò²¨·åÔ˶¯£®¹ÊCÕýÈ·£®
D¡¢Í¼Ê¾Ê±¿ÌAÖʵ㴦ÓÚ²¨·åλÖã¬BÖʵ㴦ÓÚ²¨¹ÈλÖ㬵þ¼ÓºóÁ½ÖʵãÏà¶ÔƽºâλÖõľàÀë¾ùΪ10cm£¬Á½ÖʵãµÄ¸ß¶È²îh=20cm£®¹ÊDÕýÈ·£®
±¾ÌâÑ¡´íÎóµÄ£¬¹ÊÑ¡£ºB£®
µãÆÀ£º²¨µÄµþ¼ÓÂú×ãʸÁ¿·¨Ôò£¬µ±Õñ¶¯Çé¿öÏàͬÔòÏà¼Ó£¬Õñ¶¯Çé¿öÏ෴ʱÔòÏà¼õ£¬ÇÒÁ½Áв¨»¥²»¸ÉÈÅ£®ÀýÈçµ±¸Ã²¨µÄ²¨·åÓ벨·åÏàÓöʱ£¬´Ë´¦Ïà¶ÔƽºâλÖõÄλÒÆΪÕñ·ùµÄ¶þ±¶£»µ±²¨·åÓ벨¹ÈÏàÓöʱ´Ë´¦µÄλÒÆΪÁ㣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ±íʾÁ½ÁÐÏà¸ÉË®²¨µÄµþ¼ÓÇé¿ö£¬Í¼ÖеÄʵÏß±íʾ²¨·å£¬ÐéÏß±íʾ²¨¹È£®ÉèÁ½Áв¨µÄÕñ·ù¾ùΪ5cm£¬ÇÒÔÚͼʾµÄ·¶Î§ÄÚÕñ·ù²»±ä£¬²¨ËٺͲ¨³¤·Ö±ðΪ1m/sºÍ0.5m£®CµãÊÇBEÁ¬ÏßµÄÖе㣬ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2009?½ðɽÇø¶þÄ££©ÈçͼËùʾ±íʾÁ½ÁÐÏà¸ÉË®²¨µÄµþ¼ÓÇé¿ö£¬Í¼ÖÐʵÏßΪ²¨·å£¬ÐéÏß±íʾ²¨¹È£¬ÉèÁ½Áв¨µÄÕñ·ù¾ùΪ5cm£¬ÇÒͼʾ·¶Î§ÄÚÕñ·ù²»±ä£¬²¨ËٺͲ¨³¤·Ö±ðΪ1m/sºÍ0.5m£¬CµãÊÇBEÁ¬ÏßµÄÖе㣬Ôòͼʾʱ¿ÌA¡¢BÁ½ÖʵãµÄÊúÖ±¸ß¶È²îΪ
20
20
cm£¬´Óͼʾʱ¿ÌÆð¾­0.25s£¬CÖʵãͨ¹ýµÄ·³ÌΪ
20
20
cm£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ±íʾÁ½ÁÐÏà¸ÉË®²¨µÄµþ¼ÓÇé¿ö£¬Í¼ÖеÄʵÏß±íʾ²¨·å£¬ÐéÏß±íʾ²¨¹È£®ÉèÁ½Áв¨µÄÕñ·ù¾ùΪ5cm£¬ÇÒͼʾµÄ·¶Î§ÄÚÕñ·ù²»±ä£¬²¨ËٺͲ¨³¤¶¼Ïàͬ£®CµãÊÇBEÁ¬ÏßµÄÖе㣬ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢AµãʼÖÕ´¦ÓÚ²¨·åλÖÃB¡¢CµãºÍDµã¶¼±£³Ö¾²Ö¹²»¶¯C¡¢Í¼Ê¾Ê±¿ÌA¡¢BÁ½µãµÄÊúÖ±¸ß¶È²îΪ20cmD¡¢Í¼Ê¾Ê±¿ÌCµãÕý´¦ÓÚƽºâλÖÃÇÒÏòÏÂÔ˶¯

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ±íʾÁ½ÁÐÏà¸ÉË®²¨µÄµþ¼ÓÇé¿ö£¬Í¼ÖеÄʵÏß±íʾ²¨·å£¬ÐéÏß±íʾ²¨¹È£®ÉèÁ½Áв¨µÄÕñ·ù¾ùΪ5cm£¬ÇÒͼʾµÄ·¶Î§ÄÚÕñ·ù²»±ä£¬²¨ËٺͲ¨³¤·Ö±ðΪ1m/sºÍ0.5m£®CµãÊÇBEÁ¬ÏßµÄÖе㣬ÏÂÁÐ˵·¨Öв»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢C¡¢EÁ½µã¶¼±£³Ö¾²Ö¹²»¶¯B¡¢Í¼Ê¾Ê±¿ÌA¡¢BÁ½µãµÄÊúÖ±¸ß¶È²îΪ20cmC¡¢CµãµÄÕñ·ù¿ÉÒÔ´ïµ½10cmD¡¢´ÓͼʾµÄʱ¿ÌÆð¾­0.25s£¬Bµãͨ¹ýµÄ·³ÌΪ20cm

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍø£¨1£©ÈçͼËùʾ±íʾÁ½ÁÐÏà¸ÉË®²¨Ä³Ê±¿ÌµÄ²¨·åºÍ²¨¹ÈλÖã¬ÊµÏß±íʾ²¨·å£¬ÐéÏß±íʾ²¨¹È£¬ÏàÁÚʵÏßÓëÐéÏß¼äµÄ¾àÀëΪ0.2m£¬²¨ËÙΪ1m/s£¬ÔÚͼʾ·¶Î§ÄÚ¿ÉÒÔÈÏΪÕâÁ½Áв¨µÄÕñ·ù¾ùΪ1cm£¬CµãÊÇÏàÁÚʵÏßÓëÐéÏß¼äµÄÖе㣬Ôò
 
 
A£®Í¼Ê¾Ê±¿ÌA¡¢BÁ½µãµÄÊúÖ±¸ß¶È²îΪ2cm
B£®Í¼Ê¾Ê±¿ÌCµãÕý´¦ÓÚƽºâλÖÃÇÒÏòË®ÃæÉÏÔ˶¯
C£®Fµãµ½Á½²¨Ô´µÄ·³Ì²îΪÁã
D£®¾­0.2s£¬AµãµÄλÒÆΪÁã
£¨2£©11£®¹âÏËͨÐÅÊÇ70Äê´úÒÔºó·¢Õ¹ÆðÀ´µÄÐÂÐ˼¼Êõ£¬ÊÀ½çÉÏÐí¶à¹ú¼Ò¶¼ÔÚ»ý¼«Ñо¿ºÍ·¢Õ¹ÕâÖÖ¼¼Êõ£®·¢Éäµ¼µ¯Ê±£¬¿ÉÔÚµ¼µ¯ºóÃæÁ¬Ò»¸ùϸÈçÖëË¿µÄ¹âÏË£¬¾ÍÏñ·Å·çóÝÒ»Ñù£¬ÕâÖÖÏËϸµÄ¹âÏËÔÚµ¼µ¯ºÍ·¢Éä×°ÖÃÖ®¼ä£¬Æð×ÅË«Ïò´«ÊäÐźŵÄ×÷Ó㮹âÏËÖƵ¼µÄÏÂÐйâÐźÅÊÇïØÂÁÉ鼤¹âÆ÷·¢³öµÄÔÚÏËоÖв¨³¤Îª0.85 ¦ÌmµÄµ¥É«¹â£®ÉÏÐйâÐźÅÊÇî÷ïØÉéÁ×·¢¹â¶þ¼«¹Ü·¢ÉäµÄÔÚÏËоÖв¨³¤Îª1.06 ¦ÌmµÄµ¥É«¹â£®ÕâÑù²Ù×Ýϵͳͨ¹ýÕâ¸ù¹âÏËÏòµ¼µ¯·¢³ö¿ØÖÆÖ¸Áµ¼µ¯¾ÍÈçͬ³¤¡°ÑÛ¾¦¡±Ò»Ñù¶¢×¡Ä¿±ê£®¸ù¾ÝÒÔÉÏÐÅÏ¢£¬»Ø´ðÏÂÁÐÎÊÌ⣺
¢ÙÔÚ¹âÏËÖƵ¼ÖУ¬ÉÏÐйâÐźÅÔÚÕæ¿ÕÖв¨³¤ÊǶàÉÙ£¿
¢ÚΪʲôÉÏÐйâÐźźÍÏÂÐйâÐźÅÒª²ÉÓÃÁ½ÖÖ²»Í¬ÆµÂʵĹ⣿£¨ÒÑÖª¹âÏËÏËоµÄÕÛÉäÂÊΪ1.47£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸