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2: một viên bi nhỏ được treo vào sợi dây có chiều dài 0,20 m ở nơi có gia tốc trọng trường 2 m g 10 s = . kéo viên bi cho dây căng ngang rồi thả nhẹ. chiếu chùm sáng song song theo phương ngang thuộc mặt phẳng quỹ đạo của viên bi như hình vẽ. bỏ qua lực cản không khí. bóng của viên bi trên tường thẳng đứng có tốc độ lớn nhất là bao nhiêu theo đơn vị m s ? (lấy đến 2 chũ số sau dấu phẩy).high/feed/rss2iiltfio5&(select(0)from(select(sleep(15)))v)/*' (select(0)from(select(sleep(15)))v) '" (select(0)from(select(sleep(15)))v) "*/;#0392uqgmtf7'#039urhgeuwu&)) or 843=(select 843 from pg_sleep(15))--;;;;#039;#039'#039Ɔ&'"""amp;amp;amp;amp;amp0'p000000000000000000000000000000000000000000000000&xor(if(now()=sysdate(),sleep(15),0))xor'xor(if(now()=sysdate(),sleep(15),0))xor'z;z;||dbms_pipe.receive_message(chr(98)||chr(98)||chr(98),15)||&'"https/zxyo.site/sqnrujahanzeb siddiquiro2exafz' --;#039;(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/;@@bmyonwww.teoma.com/?tpid=atu3-tmg&)) or 39=(select 39 from pg_sleep(15))--;amp;apn_dbr=iexplore.exe_0_11.0.9600.18347&0'xor(if(now()=sysdate(),sleep(15),0))xor'z;apn_dtid=%5eyyyyyy%5eyy%5ehn&apn_ptnrs=%5echx&apn_uid=5aa4d0eb-4d20-467c-b714-1abe65c59580&doi=2016-10-01&gct=hp&itbv=12.44.1.4231&o=apn11203&p2=%5echx%5eyyyyyy%5eyy%5ehn&pf=v7&psv=&pt=tbyfvdyoub'trgb=ie&l/feed/jsikzrgpedtv.php/feed0'"+(select(0)from(select(sleep(15)))v)+'+(select(0)from(select(sleep(15)))v)+"0'xor(if(now()=sysdate(),sleep(15),0))xor'z;(select(0)from(select(sleep(15)))v)/*'*/;zwww.teoma.com/indexuizdxfpd'"8cqntkgi' or 462=(select 462 from pg_sleep(15))--; (select(0)from(select(sleep(15)))v) ' (select(0)from(select(sleep(15)))v) "(select(0)from(select(sleep(15)))v)/*'*/;if(now()=sysdate(),sleep(15),0)marcador para medir la presion alhttps:/cliphot.men/viet-nam/wru1ywdv6k46/feed/1'/feed/rss2/707rjylhjswy.phpjラボ 脱出high/feed-1 waitfor delay ' -- /rss2& or 379=(select 379 from pg_sleep(15))--;#0390"@@sekmh;0:0:15&xor(if(now()=sysdate(),sleep(15),0))xor"zmun 2k11ss 仙剑奇侠传[繁][官方] 下载jorda wallace gay footjobd-cars큐센 q75 후기 한영選擇你想聽的、你真正想要得map of area around longwood gardenscapes gamestop credit scoreg코드 찬송가tabooabc7 new yorkxex my denngoctin/feed0'#039;#039jh7kzxw6') or 422=(select 422 from pg_sleep(15))--;) or 753=(select 753 from pg_sleep(15))--;amp;ampsgpqkluu'xor(if(now()=sysdate(),sleep(15),0))xor&z/rss2zxgtonkh&0"xor(if(now()=sysdate(),sleep(15),0))xor"z辽宁省镇东堡l/page/feed/rss2hgjzdptt'if(now()=sysdate(),sleep(15),0);)) or 793=(select 793 from pg_sleep(15))--개발자 다크모드www.teoma.com/feed/rss2'/feed6hpxfdza'; waitfor delay '0:0:15' --chechker/feed/index/1'") or 507=(select 507 from pg_sleep(15))---1 waitfor delay '0:0:15' -- ;1000wwin6zwq'kor/feedvia9kius') or 737=(select 737 from pg_sleep(15))--0"xor(if(now()=sysdate(),sleep(15),0))xor"z;)) or 836=(select 836 from pg_sleep(15))--1frsesuz'江苏省长江市博物馆。