ijÐËȤС×éÑо¿Ò»Ò£¿Øµç¶¯Ð¡³µ£¬½øÐÐÁËÈçÏÂʵÑ飺

¢ÙÓÃÌìƽ²â³öµç¶¯Ð¡³µµÄÖÊÁ¿Îª0.4 kg£¬

¢Ú½«µç¶¯Ð¡³µ¡¢Ö½´øºÍ´òµã¼ÆʱÆ÷°´Èçͼ¼×Ëùʾ°²×°£»

¢Û½Óͨ´òµã¼ÆʱÆ÷(Æä´òµãÖÜÆÚΪ0.02 s)£»

¢Üʹµç¶¯Ð¡³µÒԶ¹¦ÂʼÓËÙÔ˶¯£¬´ïµ½×î´óËÙ¶ÈÒ»¶Îʱ¼äºó¹Ø±ÕС³µµçÔ´£¬´ýС³µ¾²Ö¹Ê±Ôٹرմòµã¼ÆʱÆ÷(ÉèС³µÔÚÕû¸ö¹ý³ÌÖÐС³µËùÊܵÄ×èÁ¦ºã¶¨)£®

ÔÚÉÏÊö¹ý³ÌÖУ¬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏËù´òµÄ²¿·Öµã¼£ÈçÓÃÒÒËùʾ£®

ÇëÄã·ÖÎöÖ½´øÊý¾Ý£¬»Ø´ðÏÂÁÐÎÊÌ⣺

(1)¸Ãµç¶¯Ð¡³µÔ˶¯µÄ×î´óËÙ¶ÈΪ________m/s£»

(2)¸Ãµç¶¯Ð¡³µÔ˶¯ÖÐËùÊܵ½µÄ×èÁ¦Îª________N£»

(3)¸Ãµç¶¯Ð¡³µµÄ¶î¶¨¹¦ÂÊΪ________W£®

´ð°¸£º
½âÎö£º

¡¡¡¡(1)1.50(4·Ö)

¡¡¡¡(2)0.80(4·Ö)

¡¡¡¡(3)1.20(5·Ö)


Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijÐËȤС×é¶ÔÒ»Á¾×ÔÖÆÒ£¿ØС³µµÄÐÔÄܽøÐÐÑо¿£¬ËûÃÇÈÃÕâÁ¾Ð¡³µÔÚˮƽµÄÖ±¹ìµÀÉÏÓɾ²Ö¹¿ªÊ¼Ô˶¯£¬²¢½«Ð¡³µÔ˶¯µÄÈ«¹ý³Ì¼Ç¼ÏÂÀ´£¬Í¨¹ý´¦Àíת»¯Îªv-tͼÏó£¬ÈçͼËùʾ£¨³ý2¡«10sÄÚµÄͼÏóΪÇúÏßÍ⣬ÆäÓàʱ¼ä¶ÎͼÏó¾ùΪֱÏߣ©£®Ð¡³µÔ˶¯µÄ¹ý³ÌÖÐ2¡«14sʱ¼ä¶ÎÄÚС³µµÄ¹¦Âʱ£³Ö²»±ä£¬ÔÚ14sÄ©Í£Ö¹Ò£¿Ø¶øÈÃС³µ×ÔÓÉ»¬ÐУ®ÒÑ֪С³µµÄÖÊÁ¿Îª1kg£¬ÔÚÕû¸öÔ˶¯¹ý³ÌÖÐС³µËùÊܵ½µÄ×èÁ¦´óС²»±ä£®Çó£º
£¨1£©Ð¡³µËùÊܵ½µÄ×èÁ¦´óС£»
£¨2£©0¡«2sʱ¼äÄڵ綯»úÌṩµÄÇ£ÒýÁ¦´óС£»
£¨3£©Ð¡³µÔÈËÙÐÐÊ»½×¶ÎµÄ¹¦ÂÊ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2008?»ÝÖݶþÄ££©Ä³ÐËȤС×éÑо¿Ò»Ò£¿Øµç¶¯Ð¡³µ£¬½øÐÐÁËÈçÏÂʵÑ飺
¢ÙÓÃÌìƽ²â³öµç¶¯Ð¡³µµÄÖÊÁ¿Îª0.4kg£¬
¢Ú½«µç¶¯Ð¡³µ¡¢Ö½´øºÍ´òµã¼ÆʱÆ÷°´Èçͼ¼×Ëùʾ°²×°£»
¢Û½Óͨ´òµã¼ÆʱÆ÷£¨Æä´òµãÖÜÆÚΪ0.02s£©£»
¢Üʹµç¶¯Ð¡³µÒԶ¹¦ÂʼÓËÙÔ˶¯£¬´ïµ½×î´óËÙ¶ÈÒ»¶Îʱ¼äºó¹Ø±ÕС³µµçÔ´£¬´ýС³µ¾²Ö¹Ê±Ôٹرմòµã¼ÆʱÆ÷£¨ÉèС³µÔÚÕû¸ö¹ý³ÌÖÐС³µËùÊܵÄ×èÁ¦ºã¶¨£©£®
ÔÚÉÏÊö¹ý³ÌÖУ¬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏËù´òµÄ²¿·Öµã¼£ÈçÓÃÒÒËùʾ£®

ÇëÄã·ÖÎöÖ½´øÊý¾Ý£¬»ØÈÝÏÂÁÐÎÊÌ⣺
£¨1£©¸Ãµç¶¯Ð¡³µÔ˶¯µÄ×î´óËÙ¶ÈΪ
1.5
1.5
m/s£»
£¨2£©¸Ãµç¶¯Ð¡³µÔ˶¯ÖÐËùÊܵ½µÄ×èÁ¦Îª
0.80
0.80
N£»
£¨3£©¸Ãµç¶¯Ð¡³µµÄ¶î¶¨¹¦ÂÊΪ
1.20
1.20
W£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

ijÐËȤС×éÑо¿Ò»Ò£¿Øµç¶¯Ð¡³µ£¬½øÐÐÁËÈçÏÂʵÑ飺
¢ÙÓÃÌìƽ²â³öµç¶¯Ð¡³µµÄÖÊÁ¿Îª0.4kg£¬
¢Ú½«µç¶¯Ð¡³µ¡¢Ö½´øºÍ´òµã¼ÆʱÆ÷°´Èçͼ¼×Ëùʾ°²×°£»
¢Û½Óͨ´òµã¼ÆʱÆ÷£¨Æä´òµãÖÜÆÚΪ0.02s£©£»
¢Üʹµç¶¯Ð¡³µÒԶ¹¦ÂʼÓËÙÔ˶¯£¬´ïµ½×î´óËÙ¶ÈÒ»¶Îʱ¼äºó¹Ø±ÕС³µµçÔ´£¬´ýС³µ¾²Ö¹Ê±Ôٹرմòµã¼ÆʱÆ÷£¨ÉèС³µÔÚÕû¸ö¹ý³ÌÖÐС³µËùÊܵÄ×èÁ¦ºã¶¨£©£®
ÔÚÉÏÊö¹ý³ÌÖУ¬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏËù´òµÄ²¿·Öµã¼£ÈçÓÃÒÒËùʾ£®

ÇëÄã·ÖÎöÖ½´øÊý¾Ý£¬»ØÈÝÏÂÁÐÎÊÌ⣺
£¨1£©¸Ãµç¶¯Ð¡³µÔ˶¯µÄ×î´óËÙ¶ÈΪ______m/s£»
£¨2£©¸Ãµç¶¯Ð¡³µÔ˶¯ÖÐËùÊܵ½µÄ×èÁ¦Îª______N£»
£¨3£©¸Ãµç¶¯Ð¡³µµÄ¶î¶¨¹¦ÂÊΪ______W£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2008Äê¹ã¶«Ê¡»ÝÖÝÊи߿¼ÎïÀí¶þÄ£ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ijÐËȤС×éÑо¿Ò»Ò£¿Øµç¶¯Ð¡³µ£¬½øÐÐÁËÈçÏÂʵÑ飺
¢ÙÓÃÌìƽ²â³öµç¶¯Ð¡³µµÄÖÊÁ¿Îª0.4kg£¬
¢Ú½«µç¶¯Ð¡³µ¡¢Ö½´øºÍ´òµã¼ÆʱÆ÷°´Èçͼ¼×Ëùʾ°²×°£»
¢Û½Óͨ´òµã¼ÆʱÆ÷£¨Æä´òµãÖÜÆÚΪ0.02s£©£»
¢Üʹµç¶¯Ð¡³µÒԶ¹¦ÂʼÓËÙÔ˶¯£¬´ïµ½×î´óËÙ¶ÈÒ»¶Îʱ¼äºó¹Ø±ÕС³µµçÔ´£¬´ýС³µ¾²Ö¹Ê±Ôٹرմòµã¼ÆʱÆ÷£¨ÉèС³µÔÚÕû¸ö¹ý³ÌÖÐС³µËùÊܵÄ×èÁ¦ºã¶¨£©£®
ÔÚÉÏÊö¹ý³ÌÖУ¬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏËù´òµÄ²¿·Öµã¼£ÈçÓÃÒÒËùʾ£®

ÇëÄã·ÖÎöÖ½´øÊý¾Ý£¬»ØÈÝÏÂÁÐÎÊÌ⣺
£¨1£©¸Ãµç¶¯Ð¡³µÔ˶¯µÄ×î´óËÙ¶ÈΪ______m/s£»
£¨2£©¸Ãµç¶¯Ð¡³µÔ˶¯ÖÐËùÊܵ½µÄ×èÁ¦Îª______N£»
£¨3£©¸Ãµç¶¯Ð¡³µµÄ¶î¶¨¹¦ÂÊΪ______W£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸