30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ£¬Æ½¾ùÿÃëÐÐÊ»65Ã×£»ÆäÖÐ20Ãë×óÓÒµÄʱ¼ä£¬Áгµ´ïµ½430¹«ÀïµÄÉè¼Æ×î¸ßʱËÙ£¬Ò»ÃëÖÓ¼´¿ª¹ý119Ã×£¡Õâ¾ÍÊÇÆÖ¶«´Å¸¡ÁгµµÄËٶȣ¬ÈËÀà21ÊÀ¼ÍËٶȣ®¼ÇÕßÔÚÓÐÐÒÌåÑéÁËÒ»»Ø¸ßËٴŸ¡ÁгµÊÔ³µºó£¬×îÍ»³öµÄ¸ÐÊܾÍÊÇ£º¸ßËÙÕæºÃ£¡¿Æ¼¼ÕæÃÔĶÁÒÔÉÏ×ÊÁϺ󣬻شðÏÂÁÐÎÊÌ⣺
£¨1£©¡°30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ¡±£¬Óɴ˿ɼû£¬´Å¸¡ÁгµµÄËÙ¶ÈÊǷdz£µÄ¾ªÈË£®Èç¹û°´ÕÕ8·ÖÖÓ¼ÆË㣬´Å¸¡ÁгµµÄËÙ¶ÈԼΪ¶àÉÙÃ×/Ã룿ºÏ¶àÉÙǧÃ×/ʱ£¿
£¨2£©»¦º¼´Å¸¡Ïß½¨³Éºó£¬ÉϺ£ÖÁº¼ÖݵÄÌú·ÔËÐз³Ì½«ÓÉÄ¿Ç°µÄ200ǧÃ×Ëõ¶ÌÖÁ175ǧÃ×£¬´Å¸¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇ»¦º¼ÁгµËٶȵÄ3.5±¶£¬ÔËÐÐʱ¼ä±ÈÄ¿Ç°µÄ»¦º¼ÁгµÔËÐÐʱ¼äÔ¼Ëõ¶Ì1.2Сʱ£¬ÊÔÇ󻦺¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇÿСʱ¶àÉÙǧÃ×£¿
¡¾´ð°¸¡¿·ÖÎö£ºÒÑ֪·³ÌºÍʱ¼ä¿ÉÇóËٶȣ¬ÒÑÖªÁ½µØ¾àÀ룬»¹ÖªÁ½³µËÙ¶ÈÖ®±È£¬»¹ÖªµÀËùÓÃʱ¼äÖ®²î£¬¸ù¾Ý¹«Ê½¼ÆË㻦º¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËٶȾͿɣ®
½â´ð£º½â£º£¨1£©¾ÝËٶȹ«Ê½¿ÉÖª£¬
V===62.5m/s=225Km/h£®
£¨2£©ÉèÆÕͨÁгµÐгÌ200¹«ÀïµÄËÙ¶ÈΪv£¬´Å¸¡ÁгµÐгÌ175¹«ÀïµÄËÙ¶ÈΪv¡ä=3.5v£®Ôò£º
ÆÕͨÁгµÊ±¼äΪ£¬´Å¸¡ÁгµÊ±¼äΪ£®
¡ßt-t¡ä=¡÷t£¬¡à£¬½âµÃv=125Km/h£®
Ôò»¦º¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËÙ¶ÈΪ£º
v¡ä=3.5v=125Km/h×3.5=437.5Km/h
´ð£º£¨1£©´Å¸¡ÁгµµÄËÙ¶ÈԼΪ62.5Ã×/Ã룬ºÏ225ǧÃ×/ʱ£®
£¨2£©»¦º¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇÿСʱ437.5ǧÃ×£®
µãÆÀ£º±¾Ì⿼²éËٶȵļÆË㣬ÒÔ¼°Ëٶȹ«Ê½µÄ±äÐΣ¬ÊôÓÚÒ»µÀºÃÌ⣬½Ó½üʵ¼ÊÉú»î£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ£¬Æ½¾ùÿÃëÐÐÊ»65Ã×£»ÆäÖÐ20Ãë×óÓÒµÄʱ¼ä£¬Áгµ´ïµ½430¹«ÀïµÄÉè¼Æ×î¸ßʱËÙ£¬Ò»ÃëÖÓ¼´¿ª¹ý119Ã×£¡Õâ¾ÍÊÇÆÖ¶«´Å¸¡ÁгµµÄËٶȣ¬ÈËÀà21ÊÀ¼ÍËٶȣ®¼ÇÕßÔÚÓÐÐÒÌåÑéÁËÒ»»Ø¸ßËٴŸ¡ÁгµÊÔ³µºó£¬×îÍ»³öµÄ¸ÐÊܾÍÊÇ£º¸ßËÙÕæºÃ£¡¿Æ¼¼ÕæÃÔĶÁÒÔÉÏ×ÊÁϺ󣬻شðÏÂÁÐÎÊÌ⣺
£¨1£©¡°30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ¡±£¬Óɴ˿ɼû£¬´Å¸¡ÁгµµÄËÙ¶ÈÊǷdz£µÄ¾ªÈË£®Èç¹û°´ÕÕ8·ÖÖÓ¼ÆË㣬´Å¸¡ÁгµµÄËÙ¶ÈԼΪ¶àÉÙÃ×/Ã룿ºÏ¶àÉÙǧÃ×/ʱ£¿
£¨2£©»¦º¼´Å¸¡Ïß½¨³Éºó£¬ÉϺ£ÖÁº¼ÖݵÄÌú·ÔËÐз³Ì½«ÓÉÄ¿Ç°µÄ200ǧÃ×Ëõ¶ÌÖÁ175ǧÃ×£¬´Å¸¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇ»¦º¼ÁгµËٶȵÄ3.5±¶£¬ÔËÐÐʱ¼ä±ÈÄ¿Ç°µÄ»¦º¼ÁгµÔËÐÐʱ¼äÔ¼Ëõ¶Ì1.2Сʱ£¬ÊÔÇ󻦺¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇÿСʱ¶àÉÙǧÃ×£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ£¬Æ½¾ùÿÃëÐÐÊ»65Ã×£»ÆäÖÐ20Ãë×óÓÒµÄʱ¼ä£¬Áгµ´ïµ½430¹«ÀïµÄÉè¼Æ×î¸ßʱËÙ£¬Ò»ÃëÖÓ¼´¿ª¹ý119Ã×£¡Õâ¾ÍÊÇÆÖ¶«´Å¸¡ÁгµµÄËٶȣ¬ÈËÀà21ÊÀ¼ÍËٶȣ®¼ÇÕßÔÚÓÐÐÒÌåÑéÁËÒ»»Ø¸ßËٴŸ¡ÁгµÊÔ³µºó£¬×îÍ»³öµÄ¸ÐÊܾÍÊÇ£º¸ßËÙÕæºÃ£¡¿Æ¼¼ÕæÃÔĶÁÒÔÉÏ×ÊÁϺ󣬻شðÏÂÁÐÎÊÌ⣺
£¨1£©¡°30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ¡±£¬Óɴ˿ɼû£¬´Å¸¡ÁгµµÄËÙ¶ÈÊǷdz£µÄ¾ªÈË£®Èç¹û°´ÕÕ8·ÖÖÓ¼ÆË㣬´Å¸¡ÁгµµÄËÙ¶ÈԼΪ¶àÉÙÃ×/Ã룿ºÏ¶àÉÙǧÃ×/ʱ£¿
£¨2£©»¦º¼´Å¸¡Ïß½¨³Éºó£¬ÉϺ£ÖÁº¼ÖݵÄÌú·ÔËÐз³Ì½«ÓÉÄ¿Ç°µÄ200ǧÃ×Ëõ¶ÌÖÁ175ǧÃ×£¬´Å¸¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇ»¦º¼ÁгµËٶȵÄ3.5±¶£¬ÔËÐÐʱ¼ä±ÈÄ¿Ç°µÄ»¦º¼ÁгµÔËÐÐʱ¼äÔ¼Ëõ¶Ì1.2Сʱ£¬ÊÔÇ󻦺¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇÿСʱ¶àÉÙǧÃ×£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ£¬Æ½¾ùÿÃëÐÐÊ»65Ã×£»ÆäÖÐ20Ãë×óÓÒµÄʱ¼ä£¬Áгµ´ïµ½430¹«ÀïµÄÉè¼Æ×î¸ßʱËÙ£¬Ò»ÃëÖÓ¼´¿ª¹ý119Ã×£¡Õâ¾ÍÊÇÆÖ¶«´Å¸¡ÁгµµÄËٶȣ¬ÈËÀà21ÊÀ¼ÍËٶȣ®¼ÇÕßÔÚÓÐÐÒÌåÑéÁËÒ»»Ø¸ßËٴŸ¡ÁгµÊÔ³µºó£¬×îÍ»³öµÄ¸ÐÊܾÍÊÇ£º¸ßËÙÕæºÃ£¡¿Æ¼¼ÕæÃÔĶÁÒÔÉÏ×ÊÁϺ󣬻شðÏÂÁÐÎÊÌ⣺
£¨1£©¡°30¹«Àï¾àÀ룬·Ñʱ²»µ½8·ÖÖÓ¡±£¬Óɴ˿ɼû£¬´Å¸¡ÁгµµÄËÙ¶ÈÊǷdz£µÄ¾ªÈË£®Èç¹û°´ÕÕ8·ÖÖÓ¼ÆË㣬´Å¸¡ÁгµµÄËÙ¶ÈԼΪ¶àÉÙÃ×/Ã룿ºÏ¶àÉÙǧÃ×/ʱ£¿
£¨2£©»¦º¼´Å¸¡Ïß½¨³Éºó£¬ÉϺ£ÖÁº¼ÖݵÄÌú·ÔËÐз³Ì½«ÓÉÄ¿Ç°µÄ200ǧÃ×Ëõ¶ÌÖÁ175ǧÃ×£¬´Å¸¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇ»¦º¼ÁгµËٶȵÄ3.5±¶£¬ÔËÐÐʱ¼ä±ÈÄ¿Ç°µÄ»¦º¼ÁгµÔËÐÐʱ¼äÔ¼Ëõ¶Ì1.2Сʱ£¬ÊÔÇ󻦺¼´Å¸¡ÏߴŸ¡ÁгµµÄÉè¼ÆËÙ¶ÈÊÇÿСʱ¶àÉÙǧÃ×£¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸