ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¹âµç¼ÆʱÆ÷ÊÇÒ»ÖÖ³£ÓüÆʱÒÇÆ÷£¬Æä½á¹¹Èçͼ¼×Ëùʾ£¬a¡¢b·Ö±ðÊǹâµçÃŵļ¤¹â·¢ÉäºÍ½ÓÊÕ×°Ö㬵±Óл¬¿é´Óa¡¢b¼äͨ¹ýʱ£¬¹âµç¼ÆʱÆ÷¾Í¿ÉÒÔÏÔʾ³öÎïÌåµÄµ²¹âʱ¼ä¡£ÏÖÓÐij»¬¿éÔÚбÃæÉÏ»¬ÐУ¬ÏȺóÁ½´Îͨ¹ý¹âµçÃÅ1ºÍ2£¬¼ÆʱÆ÷ÏÔʾµÄµ²¹âʱ¼ä·Ö±ðÊÇt1£½5¡Á10£2s¡¢t2£½3¡Á10£2s£¬´Ó¹âµçÃÅ1µ½¹âµçÃÅ2Ëù¾ÀúµÄ×Üʱ¼ät£½0.15s£¬Ó÷ֶÈֵΪ1mmµÄ¿Ì¶È³ß²âÁ¿Ð¡»¬¿éµÄ³¤¶Èd£¬Ê¾ÊýÈçͼÒÒËùʾ¡£
(1)¶Á³ö»¬¿éµÄ³¤¶ÈdΪ___________cm¡£
(2)»¬¿éͨ¹ý¹âµçÃŵÄËÙ¶Èv1¡¢v2·Ö±ðΪ_________________m/s¡¢________________ m/s¡£
(3)»¬¿éµÄ¼ÓËٶȴóСΪ____________¡£(¼ÆËã½á¹û±£ÁôÁ½Î»Ð¡Êý)
¡¾´ð°¸¡¿4.45 0.89 1.48 3.93
¡¾½âÎö¡¿
(1).ÓɺÁÃ׿̶ȳßÖ±½Ó¶Á³ö»¬¿éµÄ³¤¶Èd=4.42cm£¬×¢ÒâÒª¹À¶Áµ½mmÒÔÏÂ.
(2).»¬¿éͨ¹ý¹âµçÃÅ1µÄËÙ¶Èv1==
m/s=0.88m/s(×î´óµ½0.89m/s)
»¬¿éͨ¹ý¹âµçÃÅ2µÄËÙ¶Èv2==
m/s=1.47m/s(×î´óµ½1.48m/s)
(3).»¬¿éµÄ¼ÓËÙ¶Èa==
m/
=3.93m/
![](http://thumb2018.1010pic.com/images/loading.gif)