£¨1£©ÈçͼÊÇÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò×°Ö㬽«Ò»¸ùÏðƤ½îµÄÒ»¶Ë¹Ì¶¨ÔÚAÉÏ£®µÚÒ»´Îͨ¹ýϸÏßÐüµõ4¸ö¹³Âëʱ£¬ÏðƤ½îµÄÁíÒ»¶Ë±»À­Éìµ½O´¦(ͼ¼×)£»µÚ¶þ´ÎÔÚľ°åÉϹ̶¨ÁËÁ½¸ö¹â»¬Ð¡ÂÖBºÍC£¬Ï¸Ïßͨ¹ýÁ½ÂÖ·Ö±ðÐü¹Ò2¸öºÍ3¸ö¹³Â룬·¢ÏÖÏðƤ½îÑØAO·½ÏòÉ쳤µ«ÁíÒ»¶ËO¡äÓëO»¹Î´ÖغÏ(ͼÒÒ)£®

¢ÙΪÁËʹO¡äÓëOµãÄܹ»Öغϣ¬ËûÓ¦¸Ã½«Ð¡ÂÖB¡¢CÊʵ±Ïò       £¨Ìî¡°ÉÏ·½¡±»ò¡°Ï·½¡±£©Òƶ¯£»
¢ÚʵÑé¹ý³Ì³ý¼Ç¼ÏðƤ½îÓëϸÏß½áµãµÄλÖÃOÍ⣬»¹Ðè¼Ç¼                         ºÍ                        .
£¨2£©Ä³Ñ§Ï°Ð¡×é×ö̽¾¿ÍâÁ¦×ö¹¦ÓëÎïÌ嶯Äܱ仯µÄ¹ØϵʵÑ飬ÔÚʵÑéÊÒ×é×°ÁËÒ»Ì×ÈçͼËùʾµÄ×°Öã¬ËûÃÇÕÒµ½ÁË´òµã¼ÆʱÆ÷¡¢Ñ§ÉúµçÔ´¡¢µ¼Ïß¡¢¸´Ð´Ö½¡¢Ö½´ø¡¢Ð¡Ä¾¿é¡¢Ï¸É³¡¢ÌìƽºÍ¿Ì¶È³ßµÈ¡£ÈôÄãÊÇС×éÖеÄһλ³ÉÔ±£¬Íê³É¸ÃÏîʵÑéµÄÁ½¸ö²½Ö裺

¢Ùµ±»¬¿éÁ¬½ÓÉÏÖ½´ø£¬ÓÃϸÏßͨ¹ý»¬ÂÖ¹ÒÉÏСɳͰʱ£¬ÏÈ        £¬ÔÙ        £¨Ìî¡°ÊÍ·ÅɳͰ¡±»ò¡°½ÓͨµçÔ´¡±£©£¬Ê¹»¬¿é´ø¶¯Ö½´øÔÚľ°åÉÏÔ˶¯£»
¢ÚʵÑéʱÈÏΪºÏÍâÁ¦ÓëɳͰµÄ×ÜÖØÁ¦´óС»ù±¾ÏàµÈ£¬ÓÃÌìƽ³ÆÁ¿»¬¿éµÄÖÊÁ¿ÎªM£¬ÍùɳͰÖÐ×°ÈëÊÊÁ¿µÄϸɳ£¬ÓÃÌìƽ³Æ³ö´ËʱɳºÍɳͰµÄ×ÜÖÊÁ¿Îªm£¬ÈÃɳͰ´ø¶¯»¬¿é¼ÓËÙÔ˶¯¡£Óôòµã¼ÆʱÆ÷¼Ç¼ÆäÔ˶¯Çé¿ö£¬ÔÚ´òµã¼ÆʱÆ÷´ò³öµÄÖ½´øÉÏÈ¡Á½µã£¬²â³öÕâÁ½µãµÄ¼ä¾àLºÍÕâÁ½µãµÄËٶȴóСv1Óëv2(v1£¼v2)¡£Ôò±¾ÊµÑé×îÖÕÒªÑéÖ¤µÄÊýѧ±í´ïʽΪ£º______________________________________¡££¨ÓÃÌâÖеÄ×Öĸ±íʾʵÑéÖвâÁ¿µÃµ½µÄÎïÀíÁ¿£©

£¨1£©¢ÙÏ·½¢Ú ¹³Âë¸öÊý£¨»òϸÏßÀ­Á¦£©£¬Ï¸Ïß·½Ïò £¨2£©¢Ù½ÓͨµçÔ´£¬ÊÍ·ÅɳͰ¢Ú mgL£½Mv22£­Mv12

½âÎöÊÔÌâ·ÖÎö£º£¨1£©¢ÙÓÉÒÒͼ¿ÉÖª£¬Á½¸ö·ÖÁ¦µÄ´óС²»±ä£¬ÒªÊ¹ÆäºÏÁ¦Ôö´ó£¬Ó¦¸Ã¼õСÁ½·ÖÁ¦µÄ¼Ð½Ç£¬¹Ê¸Ã½«Ð¡ÂÖB¡¢CÊʵ±ÏòÏ·½Òƶ¯£®¢Ú¸ù¾ÝʵÑéÔ­Àí¿ÉÖªÐèÒª¸ù¾ÝÁ½·½·ÖÁ¦µÄ´óСºÍ·½Ïò×öƽÐÐËıßÐΣ¬¹ÊÐèÒª¼Ç¼·ÖÁ¦µÄ´óСºÍ·½Ïò£¬´óСÊÇͨ¹ý¼Ç¼¹³Âë¸öÊýÀ´ÊµÏֵģ¬¶ø·½ÏòÊÇͨ¹ý¼Ç¼ϸÏß·½ÏòÀ´¼Ç¼µÄ£®
£¨2£©¢ÙΪÁ˵õ½¸ü¶àµÄʵÑéÊý¾Ý£¬ÐèÒªÏȽÓͨµçÔ´ºóÊÍ·ÅɳͰ£¬
¢ÚÖØÁ¦ÊÆÄܵļõСÁ¿µÈÓÚ¶¯ÄܵÄÔö¼ÓÁ¿£¬¹ÊÐèÒªÑéÖ¤
¿¼µã£º¿¼²éÁËÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨ÔòʵÑéºÍ̽¾¿ÍâÁ¦×ö¹¦ÓëÎïÌ嶯Äܱ仯µÄ¹ØϵʵÑé
µãÆÀ£º¶ÔÓÚ»ù´¡ÊµÑé²»¹âÒª´ÓÔ­ÀíÉÏÀí½â£¬»¹Òª¼Óǿʵ¼Ê²Ù×÷£¬Ìá¸ß¶¯ÊÖÄÜÁ¦£¬Á˽â²Ù×÷ϸ½Ú£¬Í¬Ê±¼ÓÇ¿»ù´¡ÎïÀí֪ʶÔÚʵÑéÖеÄÓ¦Óã®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©ÈçͼÊÇÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò×°Ö㬽«Ò»¸ùÏðƤ½îµÄÒ»¶Ë¹Ì¶¨ÔÚAÉÏ£®µÚÒ»´Îͨ¹ýϸÏßÐüµõ4¸ö¹³Âëʱ£¬ÏðƤ½îµÄÁíÒ»¶Ë±»À­Éìµ½O´¦£¨Í¼¼×£©£»µÚ¶þ´ÎÔÚľ°åÉϹ̶¨ÁËÁ½¸ö¹â»¬Ð¡ÂÖBºÍC£¬Ï¸Ïßͨ¹ýÁ½ÂÖ·Ö±ðÐü¹Ò2¸öºÍ3¸ö¹³Â룬·¢ÏÖÏðƤ½îÑØAO·½ÏòÉ쳤µ«ÁíÒ»¶ËO¡äÓë O»¹Î´Öغϣ¨Í¼ÒÒ£©£®
¢ÙΪÁËʹO¡äÓë OµãÄܹ»Öغϣ¬ËûÓ¦¸Ã½«Ð¡ÂÖB¡¢CÊʵ±Ïò
Ï·½
Ï·½
£¨Ìî¡°ÉÏ·½¡±»ò¡°Ï·½¡±£©Òƶ¯£»
¢ÚʵÑé¹ý³Ì³ý¼Ç¼ÏðƤ½îÓëϸÏß½áµãµÄλÖÃOÍ⣬»¹Ðè¼Ç¼
¹³Âë¸öÊý
¹³Âë¸öÊý
 ºÍ
ϸÏß·½Ïò
ϸÏß·½Ïò
£®
£¨2£©ÓÃÈçͼ¼×µÄ×°ÖÃÑéÖ¤»úеÄÜÊغ㶨ÂÉ£®
¢Ù³ýÁËͼ±ûËùʾµÄʵÑéÆ÷²Ä£¬ÒÔ¼°Ñ§ÉúµçÔ´¡¢µ¼Ïߺ͵ç¼üÖ®Í⣬»¹ÐèҪʲôÆ÷²Ä£º
¿Ì¶È³ß
¿Ì¶È³ß
£¨Ìî¡°Ììƽ¡±¡¢¡°Ãë±í¡±»ò¡°¿Ì¶È³ß¡±£©£®
¢ÚÇëÍê³ÉÏÂÁÐÖ÷ҪʵÑé²½Ö裺
A£®½«´òµã¼ÆʱÆ÷½Óµ½Ñ§ÉúµçÔ´µÄ
½»Á÷
½»Á÷
£¨Ìî¡°Ö±Á÷¡±»ò¡°½»Á÷¡±£©Êä³ö¶Ë£»
B£®
½Óͨ´òµã¼ÆʱÆ÷µçÔ´
½Óͨ´òµã¼ÆʱÆ÷µçÔ´
£¬ÊÍ·ÅÐü¹ÒÖ½´øµÄ¼Ð×Ó£¬¼ÆʱÆ÷´ò³öÒ»ÌõÖ½´ø£®
¢Ûͼ¶¡ÊǸÃʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬Á½¸ö¼ÆÊýµã¼äµÄ¾àÀëÊý¾ÝÈçͼ£¬Ê±¼ä¼ä¸ôT=0.1s£®ÔòDµã¶ÔÓ¦µÄËÙ¶ÈvD=
1.91m/s
1.91m/s
£®£¨¼ÆËã½á¹û±£Áô3λÓÐЧÊý×Ö£©
¢ÜÓÉÓÚ
×èÁ¦×ö¹¦
×èÁ¦×ö¹¦
ʹ»úеÄÜÓÐËðʧ£¬µÃ³öµÄʵÑé½á¹û£¬ÖØ´¸ÖØÁ¦ÊÆÄܼõÉÙÁ¿¡÷Ep
´óÓÚ
´óÓÚ
£¨ÌСÓÚ¡±¡¢¡°µÈÓÚ¡±»ò¡°´óÓÚ¡±£©¶¯ÄܵÄÔö¼ÓÁ¿¡÷Ek£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2015½ì¹ã¶«Ê¡¸ßÒ»ÎïÀíÊî¼Ù×÷Òµ£¨Ò»£©£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

£¨1£©ÈçͼÊÇÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò×°Ö㬽«Ò»¸ùÏðƤ½îµÄÒ»¶Ë¹Ì¶¨ÔÚAÉÏ£®µÚÒ»´Îͨ¹ýϸÏßÐüµõ4¸ö¹³Âëʱ£¬ÏðƤ½îµÄÁíÒ»¶Ë±»À­Éìµ½O´¦(ͼ¼×)£»µÚ¶þ´ÎÔÚľ°åÉϹ̶¨ÁËÁ½¸ö¹â»¬Ð¡ÂÖBºÍC£¬Ï¸Ïßͨ¹ýÁ½ÂÖ·Ö±ðÐü¹Ò2¸öºÍ3¸ö¹³Â룬·¢ÏÖÏðƤ½îÑØAO·½ÏòÉ쳤µ«ÁíÒ»¶ËO¡äÓëO»¹Î´ÖغÏ(ͼÒÒ)£®

¢ÙΪÁËʹO¡äÓëOµãÄܹ»Öغϣ¬ËûÓ¦¸Ã½«Ð¡ÂÖB¡¢CÊʵ±Ïò       £¨Ìî¡°ÉÏ·½¡±»ò¡°Ï·½¡±£©Òƶ¯£»

¢ÚʵÑé¹ý³Ì³ý¼Ç¼ÏðƤ½îÓëϸÏß½áµãµÄλÖÃOÍ⣬»¹Ðè¼Ç¼                         ºÍ                        .

£¨2£©Ä³Ñ§Ï°Ð¡×é×ö̽¾¿ÍâÁ¦×ö¹¦ÓëÎïÌ嶯Äܱ仯µÄ¹ØϵʵÑ飬ÔÚʵÑéÊÒ×é×°ÁËÒ»Ì×ÈçͼËùʾµÄ×°Öã¬ËûÃÇÕÒµ½ÁË´òµã¼ÆʱÆ÷¡¢Ñ§ÉúµçÔ´¡¢µ¼Ïß¡¢¸´Ð´Ö½¡¢Ö½´ø¡¢Ð¡Ä¾¿é¡¢Ï¸É³¡¢ÌìƽºÍ¿Ì¶È³ßµÈ¡£ÈôÄãÊÇС×éÖеÄһλ³ÉÔ±£¬Íê³É¸ÃÏîʵÑéµÄÁ½¸ö²½Ö裺

¢Ùµ±»¬¿éÁ¬½ÓÉÏÖ½´ø£¬ÓÃϸÏßͨ¹ý»¬ÂÖ¹ÒÉÏСɳͰʱ£¬ÏÈ        £¬ÔÙ        £¨Ìî¡°ÊÍ·ÅɳͰ¡±»ò¡°½ÓͨµçÔ´¡±£©£¬Ê¹»¬¿é´ø¶¯Ö½´øÔÚľ°åÉÏÔ˶¯£»

¢ÚʵÑéʱÈÏΪºÏÍâÁ¦ÓëɳͰµÄ×ÜÖØÁ¦´óС»ù±¾ÏàµÈ£¬ÓÃÌìƽ³ÆÁ¿»¬¿éµÄÖÊÁ¿ÎªM£¬ÍùɳͰÖÐ×°ÈëÊÊÁ¿µÄϸɳ£¬ÓÃÌìƽ³Æ³ö´ËʱɳºÍɳͰµÄ×ÜÖÊÁ¿Îªm£¬ÈÃɳͰ´ø¶¯»¬¿é¼ÓËÙÔ˶¯¡£Óôòµã¼ÆʱÆ÷¼Ç¼ÆäÔ˶¯Çé¿ö£¬ÔÚ´òµã¼ÆʱÆ÷´ò³öµÄÖ½´øÉÏÈ¡Á½µã£¬²â³öÕâÁ½µãµÄ¼ä¾àLºÍÕâÁ½µãµÄËٶȴóСv1Óëv2(v1£¼v2)¡£Ôò±¾ÊµÑé×îÖÕÒªÑéÖ¤µÄÊýѧ±í´ïʽΪ£º______________________________________¡££¨ÓÃÌâÖеÄ×Öĸ±íʾʵÑéÖвâÁ¿µÃµ½µÄÎïÀíÁ¿£©

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

£¨1£©ÈçͼÊÇÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò×°Ö㬽«Ò»¸ùÏðƤ½îµÄÒ»¶Ë¹Ì¶¨ÔÚAÉÏ£®µÚÒ»´Îͨ¹ýϸÏßÐüµõ4¸ö¹³Âëʱ£¬ÏðƤ½îµÄÁíÒ»¶Ë±»À­Éìµ½O´¦£¨Í¼¼×£©£»µÚ¶þ´ÎÔÚľ°åÉϹ̶¨ÁËÁ½¸ö¹â»¬Ð¡ÂÖBºÍC£¬Ï¸Ïßͨ¹ýÁ½ÂÖ·Ö±ðÐü¹Ò2¸öºÍ3¸ö¹³Â룬·¢ÏÖÏðƤ½îÑØAO·½ÏòÉ쳤µ«ÁíÒ»¶ËO¡äÓë O»¹Î´Öغϣ¨Í¼ÒÒ£©£®
¢ÙΪÁËʹO¡äÓë OµãÄܹ»Öغϣ¬ËûÓ¦¸Ã½«Ð¡ÂÖB¡¢CÊʵ±Ïò______£¨Ìî¡°ÉÏ·½¡±»ò¡°Ï·½¡±£©Òƶ¯£»
¢ÚʵÑé¹ý³Ì³ý¼Ç¼ÏðƤ½îÓëϸÏß½áµãµÄλÖÃOÍ⣬»¹Ðè¼Ç¼______ ºÍ______£®
£¨2£©ÓÃÈçͼ¼×µÄ×°ÖÃÑéÖ¤»úеÄÜÊغ㶨ÂÉ£®
¢Ù³ýÁËͼ±ûËùʾµÄʵÑéÆ÷²Ä£¬ÒÔ¼°Ñ§ÉúµçÔ´¡¢µ¼Ïߺ͵ç¼üÖ®Í⣬»¹ÐèҪʲôÆ÷²Ä£º______£¨Ìî¡°Ììƽ¡±¡¢¡°Ãë±í¡±»ò¡°¿Ì¶È³ß¡±£©£®
¢ÚÇëÍê³ÉÏÂÁÐÖ÷ҪʵÑé²½Ö裺
A£®½«´òµã¼ÆʱÆ÷½Óµ½Ñ§ÉúµçÔ´µÄ______£¨Ìî¡°Ö±Á÷¡±»ò¡°½»Á÷¡±£©Êä³ö¶Ë£»
B£®______£¬ÊÍ·ÅÐü¹ÒÖ½´øµÄ¼Ð×Ó£¬¼ÆʱÆ÷´ò³öÒ»ÌõÖ½´ø£®
¢Ûͼ¶¡ÊǸÃʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬Á½¸ö¼ÆÊýµã¼äµÄ¾àÀëÊý¾ÝÈçͼ£¬Ê±¼ä¼ä¸ôT=0.1s£®ÔòDµã¶ÔÓ¦µÄËÙ¶ÈvD=______£®£¨¼ÆËã½á¹û±£Áô3λÓÐЧÊý×Ö£©
¢ÜÓÉÓÚ______ʹ»úеÄÜÓÐËðʧ£¬µÃ³öµÄʵÑé½á¹û£¬ÖØ´¸ÖØÁ¦ÊÆÄܼõÉÙÁ¿¡÷Ep______£¨ÌСÓÚ¡±¡¢¡°µÈÓÚ¡±»ò¡°´óÓÚ¡±£©¶¯ÄܵÄÔö¼ÓÁ¿¡÷Ek£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

£¨1£©ÈçͼÊÇÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò×°Ö㬽«Ò»¸ùÏðƤ½îµÄÒ»¶Ë¹Ì¶¨ÔÚAÉÏ£®µÚÒ»´Îͨ¹ýϸÏßÐüµõ4¸ö¹³Âëʱ£¬ÏðƤ½îµÄÁíÒ»¶Ë±»À­Éìµ½O´¦£¨Í¼¼×£©£»µÚ¶þ´ÎÔÚľ°åÉϹ̶¨ÁËÁ½¸ö¹â»¬Ð¡ÂÖBºÍC£¬Ï¸Ïßͨ¹ýÁ½ÂÖ·Ö±ðÐü¹Ò2¸öºÍ3¸ö¹³Â룬·¢ÏÖÏðƤ½îÑØAO·½ÏòÉ쳤µ«ÁíÒ»¶ËO¡äÓë O»¹Î´Öغϣ¨Í¼ÒÒ£©£®
¢ÙΪÁËʹO¡äÓë OµãÄܹ»Öغϣ¬ËûÓ¦¸Ã½«Ð¡ÂÖB¡¢CÊʵ±Ïò______£¨Ìî¡°ÉÏ·½¡±»ò¡°Ï·½¡±£©Òƶ¯£»
¢ÚʵÑé¹ý³Ì³ý¼Ç¼ÏðƤ½îÓëϸÏß½áµãµÄλÖÃOÍ⣬»¹Ðè¼Ç¼______ ºÍ______£®
£¨2£©ÓÃÈçͼ¼×µÄ×°ÖÃÑéÖ¤»úеÄÜÊغ㶨ÂÉ£®
¢Ù³ýÁËͼ±ûËùʾµÄʵÑéÆ÷²Ä£¬ÒÔ¼°Ñ§ÉúµçÔ´¡¢µ¼Ïߺ͵ç¼üÖ®Í⣬»¹ÐèҪʲôÆ÷²Ä£º______£¨Ìî¡°Ììƽ¡±¡¢¡°Ãë±í¡±»ò¡°¿Ì¶È³ß¡±£©£®
¢ÚÇëÍê³ÉÏÂÁÐÖ÷ҪʵÑé²½Ö裺
A£®½«´òµã¼ÆʱÆ÷½Óµ½Ñ§ÉúµçÔ´µÄ______£¨Ìî¡°Ö±Á÷¡±»ò¡°½»Á÷¡±£©Êä³ö¶Ë£»
B£®______£¬ÊÍ·ÅÐü¹ÒÖ½´øµÄ¼Ð×Ó£¬¼ÆʱÆ÷´ò³öÒ»ÌõÖ½´ø£®
¢Ûͼ¶¡ÊǸÃʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬Á½¸ö¼ÆÊýµã¼äµÄ¾àÀëÊý¾ÝÈçͼ£¬Ê±¼ä¼ä¸ôT=0.1s£®ÔòDµã¶ÔÓ¦µÄËÙ¶ÈvD=______£®£¨¼ÆËã½á¹û±£Áô3λÓÐЧÊý×Ö£©
¢ÜÓÉÓÚ______ʹ»úеÄÜÓÐËðʧ£¬µÃ³öµÄʵÑé½á¹û£¬ÖØ´¸ÖØÁ¦ÊÆÄܼõÉÙÁ¿¡÷Ep______£¨ÌСÓÚ¡±¡¢¡°µÈÓÚ¡±»ò¡°´óÓÚ¡±£©¶¯ÄܵÄÔö¼ÓÁ¿¡÷Ek£®

¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸