ÌâÄ¿ÄÚÈÝ
¡°´óÑóÒ»ºÅ¡±Å䱸ÓÐÒ»ÖÖÉùÄÅ̽²âϵͳ£¬ÓÃËü¿É²âÁ¿º£Ë®µÄÉî¶È£®ÆäÔÀíÊÇ£ºÓó¬Éù²¨·¢ÉúÆ÷´¹Ö±Ïòº£µ×·¢É䳬Éù²¨£¬³¬Éù²¨ÔÚº£µ×»á·´Éä»ØÀ´£¬ÈôÒÑÖª³¬Éù²¨ÔÚº£Ë®ÖеIJ¨ËÙ£¬Í¨¹ý²âÁ¿´Ó·¢É䳬Éù²¨µ½½ÓÊÕµ½·´É䲨µÄʱ¼ä£¬¾Í¿ÉÍÆËã³ö´¬ËùÔÚλÖõĺ£Ë®Éî¶È£®ÏÖÒÑÖª³¬Éù²¨ÔÚº£Ë®ÖеIJ¨ËÙΪ1500m/s£¬´¬¾²Ö¹Ê±£¬²âÁ¿´Ó·¢É䳬Éù²¨µ½½ÓÊÕµ½·´É䲨µÄʱ¼äΪ8s£¬Ôò¸Ã´¬ËùÔÚλÖõĺ£Ë®Éî¶ÈÊÇ
6000
6000
m£®·ÖÎö£ºÉùÒôµÄ·´Éä²úÉú»ØÉù£¬ÉùÄÅ·¢³öºó8sÊÕµ½ÐźÅ˵Ã÷µ¥³Ìʱ¼äÊÇ4s£¬ÔÙ¸ù¾ÝËٶȹ«Ê½À´¼ÆË㷳̼´¿É£®
½â´ð£º½â£º¸ù¾ÝÌâÒ⣬³¬Éù²¨ÒԺ㶨µÄËÙ¶ÈÀ´»Ø´«²¥£¬µÃ£º
S=
=
=6000m£®
¹Ê´ð°¸Îª£º6000
S=
vt |
2 |
1500¡Á8 |
2 |
¹Ê´ð°¸Îª£º6000
µãÆÀ£º±¾Ì⿼²éѧÉú¶Ô»ØÉù²úÉúÔÒòµÄÕÆÎÕÇé¿öºÍËٶȹ«Ê½µÄ¼ÆË㣬ÄѶȽÏС£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿