ÌâÄ¿ÄÚÈÝ
£¨18·Ö£©Õæ¿ÕÖÐÓÐÈçͼl×°Öã¬Ë®Æ½·ÅÖõĽðÊô°åA¡¢BÖм俪ÓÐС¿×£¬Ð¡¿×µÄÁ¬ÏßÑØÊúÖ±·ÅÖõĽðÊô°åC¡¢DµÄÖмäÏߣ¬Ò»ÖÊÁ¿Îªm¡¢µçºÉÁ¿ÎªqµÄ´øÕýµçÁ£×Ó£¨³õËÙ²»¼Æ¡¢ÖØÁ¦²»¼Æ£©P½øÈëA¡¢B¼ä±»¼ÓËÙºó£¬ÔÙ½øÈë½ðÊô°åC¡¢D¼äµÄƫתµç³¡Æ«×ª£¬²¢Ç¡ÄÜ´ÓD°åϱßÔµÉä³ö¡£ÒÑÖª½ðÊô°åA¡¢B¼äµçÊƲîΪUAB=+U0£¬C¡¢D°å³¤¶È¾ùΪL£¬C¡¢D°å¼ä¾àΪ
¡£ÔÚ½ðÊô°åC¡¢DÏ·½ÓÐÈçͼlËùʾµÄ¡¢ÓÐÉϱ߽çµÄ¡¢·¶Î§×ã¹»´óµÄÔÈÇ¿´Å³¡£¬¸Ã´Å³¡Éϱ߽çÓë½ðÊô°åC¡¢D϶ËÖغϣ¬Æä´Å¸ÐӦǿ¶ÈËæʱ¼ä±ä»¯µÄͼÏóÈçͼ2£¬Í¼2ÖеÄB0ΪÒÑÖª£¬µ«Æä±ä»¯ÖÜÆÚTδ֪£¬ºöÂÔƫתµç³¡µÄ±ß½çЧӦ¡£


£¨1£©Çó½ðÊô°åC¡¢D¼äµÄµçÊƲîUCD£»
£¨2£©ÇóÁ£×Ó¸Õ½øÈë´Å³¡Ê±µÄËٶȣ»
£¨3£©ÒÑÖª´¹Ö±Ö½ÃæÏòÀïµÄ´Å³¡·½ÏòΪÕý·½Ïò£¬¸ÃÁ£×ÓÔÚͼ2ÖÐt=
ʱ¿Ì½øÈë´Å³¡£¬²¢ÔÚt=T0ʱ¿ÌµÄËٶȷ½ÏòÇ¡ºÃˮƽ£¬Çó¸ÃÁ£×Ó´ÓÉäÈë´Å³¡µ½À뿪´Å³¡µÄ×Üʱ¼ät×Ü¡£



£¨1£©Çó½ðÊô°åC¡¢D¼äµÄµçÊƲîUCD£»
£¨2£©ÇóÁ£×Ó¸Õ½øÈë´Å³¡Ê±µÄËٶȣ»
£¨3£©ÒÑÖª´¹Ö±Ö½ÃæÏòÀïµÄ´Å³¡·½ÏòΪÕý·½Ïò£¬¸ÃÁ£×ÓÔÚͼ2ÖÐt=

£¨1£©
£¨2£©
£¬·½ÏòÓëÊúÖ±·½Ïò¼Ð½ÇΪ30o
(3)


(3)

ÊÔÌâ·ÖÎö£º£¨1£©ÉèÁ£×Ó½øÈëƫתµç³¡Ë²¼äµÄËÙ¶ÈΪv0£¬¶ÔÁ£×Ó¼ÓËÙ¹ý³ÌÓɶ¯Äܶ¨Àí£º


½øÈëƫתµç³¡ÖУ¬Ë®Æ½Î»ÒÆ

ÆäÖмÓËÙ¶È


ÊúֱλÒÆÓëʱ¼ä¹Øϵ

ÓÖÒÀÌâÒâ¡°Ç¡ÄÜ´ÓD°åϱßÔµÉä³ö¡±£º

½âµÃ:

£¨2£©ÉèÁ£×Ó½øÈë´Å³¡Ê±µÄËÙ¶ÈΪv£¬¶ÔÁ£×ÓµÄƫת¹ý³ÌÓÐ

½âµÃ£º

ÉèÁ£×ÓÓÉkµãÀ뿪µç³¡Ê±Æ«×ª½ÇΪ¦È£¬Ôò

½âµÃ

£¨3£©Á£×ÓÔڴų¡ÖÐ×öÔ²ÖÜÔ˶¯¹ì¼£ÈçͼËùʾ£¬

ÖÜÆÚΪ£º

Á£×Ó´Ók½øÈë´Å³¡ÑØÄæʱÕë·½ÏòÔ˶¯,ÓÉ¡°ÔÚ








Ôò¸ÃÁ£×Ó´ÓÉäÈë´Å³¡µ½À뿪´Å³¡µÄ×Üʱ¼äΪ

¼´


Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿