楂樿�冪悊缁肩墿鐞嗘ā鎷熻瘯鍗?/p>
娉ㄦ剰浜嬮」锛?/p>
1.
绛旈鍓嶏紝鑰冪敓鍏堝皢鑷繁鐨勫鍚嶃�佸噯鑰冭瘉鍙峰～鍐欐竻妤氾紝灏嗘潯褰㈢爜鍑嗙‘绮樿创鍦ㄨ�冪敓淇℃伅鏉″舰鐮佺矘璐村尯銆?/p>
2
锛庨�夋嫨棰樺繀椤讳娇鐢?/p>
2B
閾呯瑪濉秱锛涢潪閫夋嫨棰樺繀椤讳娇鐢?/p>
0.5
姣背榛戣壊瀛楄抗鐨勭瀛楃瑪涔﹀啓锛屽瓧浣撳伐鏁淬�佺瑪杩?/p>
娓呮銆?/p>
3
锛庤鎸夌収棰樺彿椤哄簭鍦ㄥ悇棰樼洰鐨勭瓟棰樺尯鍩熷唴浣滅瓟锛岃秴鍑虹瓟棰樺尯鍩熶功鍐欑殑绛旀鏃犳晥锛涘湪鑽夌ǹ绾搞�佽瘯棰樺嵎涓婄瓟
棰樻棤鏁堛�?/p>
4
锛庝繚鎸佸崱闈㈡竻娲侊紝涓嶈鎶樺彔锛屼笉瑕佸紕鐮淬�佸紕鐨憋紝涓嶅噯浣跨敤娑傛敼娑层�佷慨姝ｅ甫銆佸埉绾稿垁銆?/p>
涓�銆佸崟椤归�夋嫨棰?/p>
1
锛庣墿浣撲粠
A
鐐瑰紑濮嬪仛鍖�鍙橀�熺洿绾胯繍鍔?/p>
,
鐢?/p>
A
鍒?/p>
B
鐢ㄦ椂
6s,
鐢?/p>
B
鍒?/p>
C
鐢ㄦ椂
2s,AB=BC=12m,
鍒欑墿浣撶殑鍔犻�熷害澶?/p>
灏忎负
( )
A
锛?/p>
1m/s
B
锛?/p>
2
m/s
C
锛?/p>
3