ÌâÄ¿ÄÚÈÝ
ÓÐһЩÎÊÌâÄã¿ÉÄܲ»»áÇó½â£¬µ«ÊÇÄãÈÔÓпÉÄܶÔÕâЩÎÊÌâµÄ½âÊÇ·ñºÏÀí½øÐзÖÎöºÍÅжϡ£ÀýÈç´Ó½âµÄÎïÀíÁ¿µ¥Î»£¬½âËæijЩÒÑÖªÁ¿±ä»¯µÄÇ÷ÊÆ£¬½âÔÚһЩÌØÊâÌõ¼þϵĽá¹ûµÈ·½Ãæ½øÐзÖÎö£¬²¢ÓëÔ¤ÆÚ½á¹û¡¢ÊµÑé½áÂ۵ȽøÐбȽϣ¬´Ó¶øÅжϽâµÄºÏÀíÐÔ»òÕýÈ·ÐÔ¡£
¾ÙÀýÈçÏ£ºÈçͼËùʾ¡£ÖÊÁ¿ÎªM¡¢Çã½ÇΪµÄ»¬¿éA·ÅÓÚˮƽµØÃæÉÏ¡£°ÑÖÊÁ¿ÎªmµÄ»¬¿éB·ÅÔÚAµÄбÃæÉÏ¡£ºöÂÔÒ»ÇÐĦ²Á£¬ÓÐÈËÇóµÃBÏà¶ÔµØÃæµÄ¼ÓËÙ¶Èa=,ʽÖÐgΪÖØÁ¦¼ÓËٶȡ£
¶ÔÓÚÉÏÊö½â£¬Ä³Í¬Ñ§Ê×ÏÈ·ÖÎöÁ˵ȺÅÓÒ²àÁ¿µÄµ¥Î»£¬Ã»·¢ÏÖÎÊÌâ¡£Ëû½øÒ»²½ÀûÓÃÌØÊâÌõ¼þ¶Ô¸Ã½â×öÁËÈçÏÂËÄÏî·ÖÎöºÍÅжϣ¬ËùµÃ½áÂÛ¶¼ÊÇ¡°½â¿ÉÄÜÊǶԵġ±¡£µ«ÊÇ£¬ÆäÖÐÓÐÒ»ÏîÊÇ´íÎóµÄ¡£ÇëÄãÖ¸³ö¸ÃÏî¡£
A.µ±=0ʱ£¬¸Ã½â¸ø³öa=0£¬Õâ·ûºÏ³£Ê¶£¬ËµÃ÷¸Ã½â¿ÉÄÜÊǶԵÄ
B.µ±£½90ʱ£¬¸Ã½â¸ø³öa=g,Õâ·ûºÏʵÑé½áÂÛ£¬ËµÃ÷¸Ã½â¿ÉÄÜÊǶԵÄ
C.µ±M>>mʱ£¬¸Ã½â¸ø³öa=gsin,Õâ·ûºÏÔ¤ÆڵĽá¹û£¬ËµÃ÷¸Ã½â¿ÉÄÜÊǶԵÄ
D.µ±m>>Mʱ£¬¸Ã½â¸ø³öa=g/ sin,Õâ·ûºÏÔ¤ÆڵĽá¹û£¬ËµÃ÷¸Ã½â¿ÉÄÜÊǶԵÄ
D
¡¾½âÎö¡¿ÂÔ
A¡¢
| ||
B¡¢
| ||
C¡¢
| ||
D¡¢
|