Ò»Áмòгºá²¨Ä³Ê±¿ÌµÄ²¨ÐÎÈçͼÖÐʵÏßËùʾ£¬¾­¹ý0.50sºóµÄ²¨ÐÎÈçͼÖÐÐéÏßËùʾ¡£ÒÑÖª²¨µÄÖÜÆÚΪT£¬¶øÇÒ0.25s<T<0.50s£¬Ôò 


  1. A.
    µ±²¨ÏòxÖáµÄÕý·½Ïò´«²¥Ê±£¬²¨ËÙ´óСΪ10m/s
  2. B.
    ÎÞÂÛ²¨ÏòxÖáÕý·½Ïò´«²¥»¹ÊÇÏòxÖḺ·½Ïò´«²¥£¬ÔÚÕâ0.50sÄÚx=1.0mµÄMÖʵ㣬ͨ¹ýµÄ·³Ì¶¼ÏàµÈ
  3. C.
    µ±²¨ÏòxÖáÕý·½Ïò´«²¥Ê±£¬x=1.0mµÄÖʵãMºÍx=2.5mµÄÖʵãNÔÚ0.50sÄÚͨ¹ýµÄ·³Ì²»ÏàµÈ
  4. D.
    µ±t=0.10sʱ£¬x=1.0mµÄÖʵãMÕñ¶¯µÄλÒÆÒ»¶¨ÊÇ0
A
ÓÉͼ¶Á³ö²¨³¤¦Ë=4m£®Èô²¨ÊÇÏòÓÒ´«²¥µÄÔò£¬£¬ÒòΪ0.25s<T<0.50s£¬ËùÒÔnÈ¡1µÃµ½T=0.4S£¬¸ù¾Ý £¬¹ÊAÕýÈ·
Èô²¨ÊÇÏò×ó´«²¥µÄÔò£¬£¬ÒòΪ0.25s<T<0.50s£¬ËùÒÔnÈ¡1µÃµ½T=S£¬¸ù¾Ý£¬Èô²¨ÏòxÖáÕý·½Ïò´«²¥£¬ÔòÖʵãMÕñ¶¯ÁË£¬Í¨¹ýµÄ·³ÌΪ5A=10cm£¬Èô²¨ÏòxÖḺ·½Ïò´«²¥£¬ÔòÖʵãMÕñ¶¯ÁË£¬Í¨¹ýµÄ·³ÌΪ7A=14cm£¬¹ÊB´íÎó
µ±²¨ÏòxÖáÕý·½Ïò´«²¥Ê±£¬x=1.0mµÄÖʵãMºÍx=2.5mµÄÖʵãNÔÚ0.50sÄÚͨ¹ýµÄ·³Ì¾ùΪ4¸öÕñ·ù£¬¹ÊC´íÎó
Èô²¨ÏòÓÒ´«²¥£¬µ±t=0.10sʱ£¬x=1.0mµÄÖʵãMÕñ¶¯µÄλÒÆΪ2cm£¬Èô²¨Ïò×ó´«²¥£¬µ±t=0.10sʱ£¬x=1.0mµÄÖʵãMÕñ¶¯µÄλÒÆСÓÚ0£¬¹ÊD´íÎó
ËùÒÔÑ¡A
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾΪһÁмòгºá²¨Ä³Ê±¿ÌµÄ²¨ÐÎͼ£¬²¨´«²¥µÄËÙ¶ÈΪ20m/s£¬ÈôÒÔ´Ëʱ¿ÌÖ®ºó0.1s¿ªÊ¼¼Æʱ£¬ÔòaµãµÄÕñ¶¯Í¼ÏóÓ¦ÊÇͼÖеģ¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Ò»Áмòгºá²¨Ä³Ê±¿ÌµÄ²¨ÐÎÈçͼ¼×Ëùʾ£¬´Ó¸Ãʱ¿Ì¿ªÊ¼¼Æʱ£¬Í¼ÖÐÖʵãAµÄÕñ¶¯Í¼ÏóÈçͼÒÒËùʾ£®Ôò£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?ºÓÄÏÄ£Ä⣩һÁмòгºá²¨Ä³Ê±¿ÌµÄ²¨ÐÎͼÈçͼËùʾ£¬´Ëʱ¿ÌÖʵãP µÄËٶȷ½ÏòÏòÏ£¬Ôò£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬ÊµÏßÊÇÒ»Áмòгºá²¨Ä³Ê±¿ÌµÄ²¨ÐΣ¬ÐéÏßÊǾ­¹ý0.5sºóµÄ²¨ÐΣ®ÒÑÖª²¨µÄÖÜÆÚΪT£¬¶øÇÒ0.25s£¼T£¼0.5s£¬ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2005?ËÕÖÝһģ£©ÈçͼËùʾΪһÁмòгºá²¨Ä³Ê±¿ÌµÄ²¨ÐÎͼ£¬²¨ËÙΪ0.2m/s£¬ÒÔϽáÂÛÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸