ÌâÄ¿ÄÚÈÝ
![](http://thumb.1010pic.com/pic3/upload/images/201312/121/139a0cc1.png)
£¨1£©ÊµÑéÖ÷Òª²½ÖèÈçÏ£º
¢Ù²âÁ¿Ð¡³µ£¨°üÀ¨ÀÁ¦´«¸ÐÆ÷£©µÄÖÊÁ¿M1£»°ÑϸÏßµÄÒ»¶Ë¹Ì¶¨ÔÚÀÁ¦´«¸ÐÆ÷ÉÏ£¬ÁíÒ»¶Ëͨ¹ý¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£»ÕýÈ·Á¬½ÓËùÐèµç·£»
¢Ú½«Ð¡³µÍ£ÔÚ¿¿ÓÒ·½µÄCλÖ㬽ÓͨµçÔ´ºóÊÍ·ÅС³µ£¬Ð¡³µÔÚϸÏßÀ¶¯ÏÂÔ˶¯£¬¼Ç¼ϸÏßÀÁ¦¼°Ð¡³µÍ¨¹ýA¡¢BʱµÄËٶȣ®
¢ÛÔÚС³µÖÐÔö¼ÓíÀÂë»ò
£¨2£©Ï±íÊÇËûÃDzâµÃµÄÒ»×éÊý¾Ý£¬ÆäÖÐMÊÇM1ÓëС³µÖÐíÀÂëÖÊÁ¿Ö®ºÍ£¬|
v | 2 2 |
v | 2 1 |
£¨3£©·ÖÎöÏÂ±í£¬ÔÚÎó²î·¶Î§ÄÚÄã¿ÉÒԵõ½µÄ½áÂÛÊÇ
Ôì³ÉÎó²îµÄÔÒò
´ÎÊý | M/kg | |
|
¡÷E/J | F/N | W/J | ||||
1 | 0.500 | 0.760 | 0.190 | 0.400 | 0.200 | ||||
2 | 0.500 | 1.65 | 0.413 | 0.840 | 0.420 | ||||
3 | 0.500 | 2.40 | ¡÷E3 | 1.220 | W3 | ||||
4 | 1.000 | 2.40 | 1.20 | 2.420 | 1.21 | ||||
5 | 1.000 | 2.84 | 1.42 | 2.860 | 1.43 |
![](http://thumb.1010pic.com/pic3/upload/images/201205/72/e7130397.png)
£¨1£©¢Û¸Ä±ä¹³ÂëµÄ¸öÊý£¬Öظ´ÊµÑ飻
£¨2£©Óɱí¸ñÊý¾Ý¿ÉµÃµ½£º¶¯Äܱ仯Á¿¡÷E3=
1 |
2 |
1 |
2 |
ÉèAB¾àÀëΪs£¬ÓɵÚ1´ÎʵÑéÊý¾ÝµÃÖª£ºW1=0.200J£¬F1=0.400N£¬ÓÉW1=F1s£¬µÃs=
W1 |
F1 |
0.200 |
0.400 |
¿ÉµÃµ½ÕâÑùµÄ¹æÂÉ£ºW=0.5F£®
¹ÊµÚ3´ÎʵÑéʱ£¬F3=1.220N£¬Ôò W3=F3s=1.220¡Á0.5J=0.610J
£¨3£©ÔÚ·½¸ñÖ½ÉÏ×÷³ö¡÷E-WͼÏßÈçͼËùʾ£¬ÓÉͼÏß·ÖÎö¿ÉÖªW=¡÷E£¬¿ÉÒԵõ½µÄ½áÂÛÊÇ£ºÔÚÎó²îʵÑéÔÊÐíµÄ·¶Î§ÄÚ£¬ÀÁ¦F¶ÔС³µËù×öµÄ¹¦µÈÓÚС³µºÍíÀÂ붯Äܵı仯£»
Ôì³ÉÎó²îµÄÔÒòÊÇ£ºÐ¡³µÔÚÔ˶¯¹ý³ÌÖÐÒª¿Ë·þ×èÁ¦×ö¹¦£®
¹Ê´ð°¸Îª£º£¨1£©¸Ä±ä¹³Âë¸öÊý£»£¨2£©0.600£¬0.610£»£¨3£©ÀÁ¦F¶ÔС³µËù×öµÄ¹¦µÈÓÚС³µºÍíÀÂ붯Äܵı仯£»Ð¡³µÔÚÔ˶¯¹ý³ÌÖп˷þ×èÁ¦×ö¹¦£®
![](http://thumb2018.1010pic.com/images/loading.gif)
£¨10·Ö£©Ä³ÊµÑéÊÒ¿ÉÀûÓÃÀÁ¦´«¸ÐÆ÷ºÍËٶȴ«¸ÐÆ÷̽¾¿¡°¶¯Äܶ¨Àí¡±¡£Èçͼ£¬ËûÃǽ«ÀÁ¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£¬Óò»¿ÉÉ쳤µÄÇáϸÏß½«Æäͨ¹ýÒ»¸ö¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£¬ÓÃËٶȴ«¸ÐÆ÷¼Ç¼С³µÍ¨¹ýA¡¢BʱµÄËٶȴóСÖгµÖпÉÒÔ·ÅÖÃíÀÂë¡£
£¨1£©ÊµÑéÖ÷Òª²½ÖèÈçÏ£º
¢Ù²âÁ¿Ð¡³µ£¨°üÀ¨ÀÁ¦´«¸ÐÆ÷£©µÄÖÊÁ¿M1£»°ÑϸÏßµÄÒ»¶Ë¹Ì¶¨ÔÚÀÁ¦´«¸ÐÆ÷ÉÏ£¬ÁíÒ»¶Ëͨ¹ý¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£»ÕýÈ·Á¬½ÓËùÐèµç·£»
¢Ú½«Ð¡³µÍ£ÔÚ¿¿ÓÒ·½µÄCλÖ㬽ÓͨµçÔ´ºóÊÍ·ÅС³µ£¬Ð¡³µÔÚϸÏßÀ¶¯ÏÂÔ˶¯£¬¼Ç¼ϸÏßÀÁ¦¼°Ð¡³µÍ¨¹ýA¡¢BʱµÄËٶȡ£
¢ÛÔÚС³µÖÐÔö¼ÓíÀÂë»ò Öظ´¢ÚµÄ²Ù×÷¡£
£¨2£©Ï±íÊÇËûÃDzâµÃµÄÒ»×éÊý¾Ý£¬ÆäÖÐMÊÇM1ÓëС³µÖÐíÀÂëÖÊÁ¿Ö®ºÍ£¬ÊÇÁ½¸öËٶȴ«¸ÐÆ÷¼Ç¼ËٶȵÄƽ·½²î£¬¿ÉÒԾݴ˼ÆËã³ö¶¯Äܱ仯Á¿¡÷E£¬FÊÇÀÁ¦´«¸ÐÆ÷Êܵ½µÄÀÁ¦£¬WÊÇFÔÚA¡¢B¼ä¶ÔС³µËù×÷µÄ¹¦¡£±í¸ñÖеġ÷E3= £¬W3= ¡££¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
£¨3£©·ÖÎöÏÂ±í£¬ÔÚÎó²î·¶Î§ÄÚÄã¿ÉÒԵõ½µÄ½áÂÛÊÇ £»Ôì³ÉÎó²îµÄÔÒò ¡£
Êý¾Ý¼Ç¼±í
´ÎÊý | M/kg |
| ¡÷E/J | F/N | W/J |
1 | 0.500 | 0.760 | 0.190 | 0.400 | 0.200 |
2 | 0.500 | 1.65 | 0.413 | 0.840 | 0.420 |
3 | 0.500 | 2.40 | ¡÷E1 | 1.220 | W3 |
4 | 1.000 | 2.40 | 1.20 | 2.420 | 1.21 |
5 | 1.000 | 2.84 | 1.42 | 2.860 | 1.43 |
ijʵÑéÊÒ¿ÉÀûÓÃÀÁ¦´«¸ÐÆ÷ºÍËٶȴ«¸ÐÆ÷̽¾¿¡°¶¯Äܶ¨Àí¡±¡£Èçͼ£¬ËûÃǽ«ÀÁ¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£¬Óò»¿ÉÉ쳤µÄÇáϸÏß½«Æäͨ¹ýÒ»¸ö¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£¬ÓÃËٶȴ«¸ÐÆ÷¼Ç¼С³µÍ¨¹ýA¡¢BʱµÄËٶȴóСÖгµÖпÉÒÔ·ÅÖÃíÀÂë¡£
ʵÑéÖ÷Òª²½ÖèÈçÏ£º
¢Ù²âÁ¿Ð¡³µ£¨°üÀ¨ÀÁ¦´«¸ÐÆ÷£©µÄÖÊÁ¿M1£»°ÑϸÏßµÄÒ»¶Ë¹Ì¶¨ÔÚÀÁ¦´«¸ÐÆ÷ÉÏ£¬ÁíÒ»¶Ëͨ¹ý¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£»ÕýÈ·Á¬½ÓËùÐèµç·£»
¢Ú½«Ð¡³µÍ£ÔÚ¿¿ÓÒ·½µÄCλÖ㬽ÓͨµçÔ´ºóÊÍ·ÅС³µ£¬Ð¡³µÔÚϸÏßÀ¶¯ÏÂÔ˶¯£¬¼Ç¼ϸÏßÀÁ¦¼°Ð¡³µÍ¨¹ýA¡¢BʱµÄËٶȡ£
¢ÛÔÚС³µÖÐÔö¼ÓíÀÂë»ò Öظ´¢ÚµÄ²Ù×÷¡£
£¨2£©Ï±íÊÇËûÃDzâµÃµÄÒ»×éÊý¾Ý£¬ÆäÖÐMÊÇM1ÓëС³µÖÐíÀÂëÖÊÁ¿Ö®ºÍ£¬ÊÇÁ½¸öËٶȴ«¸ÐÆ÷¼Ç¼ËٶȵÄƽ·½²î£¬¿ÉÒԾݴ˼ÆËã³ö¶¯Äܱ仯Á¿¡÷E£¬FÊÇÀÁ¦´«¸ÐÆ÷Êܵ½µÄÀÁ¦£¬WÊÇFÔÚA¡¢B¼ä¶ÔС³µËù×÷µÄ¹¦¡£±í¸ñÖеġ÷E3= £¬W3= ¡££¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
£¨3£©·ÖÎöÏÂ±í£¬ÔÚÎó²î·¶Î§ÄÚÄã¿ÉÒԵõ½µÄ½áÂÛÊÇ £»
Ôì³ÉÎó²îµÄÔÒò ¡£
Êý¾Ý¼Ç¼±í
´ÎÊý | M/kg | ![]() | ¡÷E/J | F/N | W/J |
1 | 0.500 | 0.760 | 0.190 | 0.400 | 0.200 |
2 | 0.500 | 1.65 | 0.413 | 0.840 | 0.420 |
3 | 0.500 | 2.40 | ¡÷E1 | 1.220 | W3 |
4 | 1.000 | 2.40 | 1.20 | 2.420 | 1.21 |
5 | 1.000 | 2.84 | 1.42 | 2.860 | 1.43 |
ijʵÑéÊÒ¿ÉÀûÓÃÀÁ¦´«¸ÐÆ÷ºÍËٶȴ«¸ÐÆ÷̽¾¿¡°¶¯Äܶ¨Àí¡±¡£Èçͼ£¬ËûÃǽ«ÀÁ¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£¬Óò»¿ÉÉ쳤µÄÇáϸÏß½«Æäͨ¹ýÒ»¸ö¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£¬ÓÃËٶȴ«¸ÐÆ÷¼Ç¼С³µÍ¨¹ýA¡¢BʱµÄËٶȴóСÖгµÖпÉÒÔ·ÅÖÃíÀÂë¡£
ʵÑéÖ÷Òª²½ÖèÈçÏ£º
¢Ù²âÁ¿Ð¡³µ£¨°üÀ¨ÀÁ¦´«¸ÐÆ÷£©µÄÖÊÁ¿M1£»°ÑϸÏßµÄÒ»¶Ë¹Ì¶¨ÔÚÀÁ¦´«¸ÐÆ÷ÉÏ£¬ÁíÒ»¶Ëͨ¹ý¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£»ÕýÈ·Á¬½ÓËùÐèµç·£»
¢Ú½«Ð¡³µÍ£ÔÚ¿¿ÓÒ·½µÄCλÖ㬽ÓͨµçÔ´ºóÊÍ·ÅС³µ£¬Ð¡³µÔÚϸÏßÀ¶¯ÏÂÔ˶¯£¬¼Ç¼ϸÏßÀÁ¦¼°Ð¡³µÍ¨¹ýA¡¢BʱµÄËٶȡ£
¢ÛÔÚС³µÖÐÔö¼ÓíÀÂë»ò Öظ´¢ÚµÄ²Ù×÷¡£
£¨2£©Ï±íÊÇËûÃDzâµÃµÄÒ»×éÊý¾Ý£¬ÆäÖÐMÊÇM1ÓëС³µÖÐíÀÂëÖÊÁ¿Ö®ºÍ£¬ÊÇÁ½¸öËٶȴ«¸ÐÆ÷¼Ç¼ËٶȵÄƽ·½²î£¬¿ÉÒԾݴ˼ÆËã³ö¶¯Äܱ仯Á¿¡÷E£¬FÊÇÀÁ¦´«¸ÐÆ÷Êܵ½µÄÀÁ¦£¬WÊÇFÔÚA¡¢B¼ä¶ÔС³µËù×÷µÄ¹¦¡£±í¸ñÖеġ÷E3= £¬W3= ¡££¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
£¨3£©·ÖÎöÏÂ±í£¬ÔÚÎó²î·¶Î§ÄÚÄã¿ÉÒԵõ½µÄ½áÂÛÊÇ £»
Ôì³ÉÎó²îµÄÔÒò ¡£
Êý¾Ý¼Ç¼±í
´ÎÊý |
M/kg |
|
¡÷E/J |
F/N |
W/J |
1 |
0.500 |
0.760 |
0.190 |
0.400 |
0.200 |
2 |
0.500 |
1.65 |
0.413 |
0.840 |
0.420 |
3 |
0.500 |
2.40 |
¡÷E1 |
1.220 |
W3 |
4 |
1.000 |
2.40 |
1.20 |
2.420 |
1.21 |
5 |
1.000 |
2.84 |
1.42 |
2.860 |
1.43 |
£¨10·Ö£©Ä³ÊµÑéÊÒ¿ÉÀûÓÃÀÁ¦´«¸ÐÆ÷ºÍËٶȴ«¸ÐÆ÷̽¾¿¡°¶¯Äܶ¨Àí¡±¡£Èçͼ£¬ËûÃǽ«ÀÁ¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£¬Óò»¿ÉÉ쳤µÄÇáϸÏß½«Æäͨ¹ýÒ»¸ö¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£¬ÓÃËٶȴ«¸ÐÆ÷¼Ç¼С³µÍ¨¹ýA¡¢BʱµÄËٶȴóСÖгµÖпÉÒÔ·ÅÖÃíÀÂë¡£
£¨1£©ÊµÑéÖ÷Òª²½ÖèÈçÏ£º
¢Ù²âÁ¿Ð¡³µ£¨°üÀ¨ÀÁ¦´«¸ÐÆ÷£©µÄÖÊÁ¿M1£»°ÑϸÏßµÄÒ»¶Ë¹Ì¶¨ÔÚÀÁ¦´«¸ÐÆ÷ÉÏ£¬ÁíÒ»¶Ëͨ¹ý¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£»ÕýÈ·Á¬½ÓËùÐèµç·£»
¢Ú½«Ð¡³µÍ£ÔÚ¿¿ÓÒ·½µÄCλÖ㬽ÓͨµçÔ´ºóÊÍ·ÅС³µ£¬Ð¡³µÔÚϸÏßÀ¶¯ÏÂÔ˶¯£¬¼Ç¼ϸÏßÀÁ¦¼°Ð¡³µÍ¨¹ýA¡¢BʱµÄËٶȡ£
¢ÛÔÚС³µÖÐÔö¼ÓíÀÂë»ò Öظ´¢ÚµÄ²Ù×÷¡£
£¨2£©Ï±íÊÇËûÃDzâµÃµÄÒ»×éÊý¾Ý£¬ÆäÖÐMÊÇM1ÓëС³µÖÐíÀÂëÖÊÁ¿Ö®ºÍ£¬ÊÇÁ½¸öËٶȴ«¸ÐÆ÷¼Ç¼ËٶȵÄƽ·½²î£¬¿ÉÒԾݴ˼ÆËã³ö¶¯Äܱ仯Á¿¡÷E£¬FÊÇÀÁ¦´«¸ÐÆ÷Êܵ½µÄÀÁ¦£¬WÊÇFÔÚA¡¢B¼ä¶ÔС³µËù×÷µÄ¹¦¡£±í¸ñÖеġ÷E3=
£¬W3=
¡££¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
£¨3£©·ÖÎöÏÂ±í£¬ÔÚÎó²î·¶Î§ÄÚÄã¿ÉÒԵõ½µÄ½áÂÛÊÇ £»Ôì³ÉÎó²îµÄÔÒò ¡£
Êý¾Ý¼Ç¼±í
´ÎÊý |
M/kg |
|
¡÷E/J |
F/N |
W/J |
1 |
0.500 |
0.760 |
0.190 |
0.400 |
0.200 |
2 |
0.500 |
1.65 |
0.413 |
0.840 |
0.420 |
3 |
0.500 |
2.40 |
¡÷E1 |
1.220 |
W3 |
4 |
1.000 |
2.40 |
1.20 |
2.420 |
1.21 |
5 |
1.000 |
2.84 |
1.42 |
2.860 |
1.43 |