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Physics Senior High

答えあります!!! 🟡Vac=√2vaって式?になるのが意味わからないです(>_<)(>_<)(>_<) 🟣Vaが丸つけてるところから始まったのは始点を揃えるためですか?

「力と運動 基本例題 3 相対速度 湖を東西に横切る橋を,自動車Aが東向きに 10m/s, 自動車Bが西向きに15m/sの速さで進んでいる。 p (1) Aに対するBの相対速度はどの向きに何m/sか。 ②2 この橋の下をモーターボートCが北向きに 10m/s の速さで進んだ。 Aに対するCの相対速度はどの 向きに何m/sか。 よって 西向きに25m/s =-25m/s (2) VAC は右図のよう になる。 A, Cの ① 速さは等しく, VA=Uc であるか VC ら, VACの大きさ 1 TA 8 は、直角三角形の始点をそろえる 辺の比より 題 4 VAC AI 45% 指針 一直線上の運動の場合, AとBの速度をそれぞれ UA, UB とすると, Aに対するBの相対速 度は VAB = UB-VA である。 平面上の運動の場合には, ベクトルを用いて VAB = UB-UA と なる (VAB は, UAとBの始点をそろえての終点からBの終点にベクトルをかく)。 解答 (1) 東向きを正とすると, vA=+10m/s, VB=-15m/s だから VAC=√20A VAB=UB-VA=(-15)-(+10) ¥7,8,9 解説動画 VAC 10 m/s 45% 10m/s -VA =10√2=10×1.41=14.1≒14m/s 15m/s よって 北西の向きに 14m/s [別解] VAC=Uc-VA=c+ (v^) より,ひとDA を合成して考えることもできる。 リード VC 北 西東 南 VA

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English Senior High

一枚目 長文 二枚目 問題(ア) 三枚目 自分の答えand模範解答 付属の解説本が意味不明でした。解説お願いしたいです。

10 Life Reading 目標 20分 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 Would you like to try to read a book that is 140 pages long every day! Many - are Japanese are surprised (2) to learn how long some American newspapers are. They a Slæom orll aneqsgewen to ancieev listipib ert asli orl not always 140 pages long, but they are usually at least 50 pages long. On Sundays 70198 ni olqooq odT C to 21697 0 1 qoq T some big city newspapers have hundreds of pages and *weigh almost a kilogram. gnibro biqs news, too. 37 There are lots of sections 5 (3) Of course, not everything in such a newspaper is news. m2 T raqaq zabavě s esi vis (1974-monib) 19m 16918 i 1996 about books, movies, travel, computers and hobbies, as well as star interviews and es, as well s boy arroqe bas zadintend comics in color. There are also many *advertisements, of course, but a lot of people ano ang m CECING OF COU vsbru² no,199sq ylisb niebimos atidhe bias Hold com bris flood, 25ñola bas find the advertisements very entertaining. Of course, the newspapers have a lot of he) {lind sdt ni snovievs ch the news Moky) zpililoq You may be surprised to find that (4)such large newspapers are (5)very cheap. They gaidyar are much cheaper than a newspaper in Japan. A large, heavy Sunday *edition of a vbodyas J Sunday edition of a Japanese newspaper. ding/ 4 weigh [wéi] : 重さが・・・である 11 edition [idífan] : (新聞の)… 版 1. smi ca ad te bear a newspaper in a big city may only cost about 350 yen, but it is 20 times bigger than the JR noilo92 smse sdt best a siqot amae ad juos at ziqot installib yasm tuds et 7 advertisement [ædvərtáizmənt]: 2 @ (171 words)

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English Senior High

一枚目 長文 二枚目 問題(ア) 三枚目 自分の答えand模範解答 付属の解説本が意味不明でした。解説お願いしたいです。

10 Life Reading 目標 20分 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 Would you like to try to read a book that is 140 pages long every day! Many - are Japanese are surprised (2) to learn how long some American newspapers are. They a Slæom orll aneqsgewen to ancieev listipib ert asli orl not always 140 pages long, but they are usually at least 50 pages long. On Sundays 70198 ni olqooq odT C to 21697 0 1 qoq T some big city newspapers have hundreds of pages and *weigh almost a kilogram. gnibro biqs news, too. 37 There are lots of sections 5 (3) Of course, not everything in such a newspaper is news. m2 T raqaq zabavě s esi vis (1974-monib) 19m 16918 i 1996 about books, movies, travel, computers and hobbies, as well as star interviews and es, as well s boy arroqe bas zadintend comics in color. There are also many *advertisements, of course, but a lot of people ano ang m CECING OF COU vsbru² no,199sq ylisb niebimos atidhe bias Hold com bris flood, 25ñola bas find the advertisements very entertaining. Of course, the newspapers have a lot of he) {lind sdt ni snovievs ch the news Moky) zpililoq You may be surprised to find that (4)such large newspapers are (5)very cheap. They gaidyar are much cheaper than a newspaper in Japan. A large, heavy Sunday *edition of a vbodyas J Sunday edition of a Japanese newspaper. ding/ 4 weigh [wéi] : 重さが・・・である 11 edition [idífan] : (新聞の)… 版 1. smi ca ad te bear a newspaper in a big city may only cost about 350 yen, but it is 20 times bigger than the JR noilo92 smse sdt best a siqot amae ad juos at ziqot installib yasm tuds et 7 advertisement [ædvərtáizmənt]: 2 @ (171 words)

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English Senior High

一枚目 長文  二枚目 選択肢 三枚目 自分の答えand模範解答 解説お願いします。

10 Life 目標 20分 Reading 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 Would you like to try to read a book that is 140 pages long every day? Many Chod of gi amor gnivel 91018 Japanese are surprised (2)to learn how long some American newspapers are. They are Strom erll aneqaqawen to anoienev Istigibrarü alilorlW not always 140 pages long, but they are usually at least 50 pages long. On Sundays, 208 miss ni olq to a los d some big city newspapers have hundreds of pages and *weigh almost a kilogram. gnibro biq 5 (3) Of course, not everything in such a newspaper is news. al nogeq vebau2 s dva no news, too. about books, movies, travel, computers and hobbies, as well as star interviews and kl zweiver sivom bruslood 2911212919i nemud" brit a day toge bns eesnied . F comics in color.euThere are also many *advertisements, of course, but a lot of people ni immortwebas dold bris,noisse blow a e'eredi ysbru² no 199sq ylisb find the advertisements very entertaining. Of course, the newspapers have a lot of rimantledi ni mot There are lots of sections 12 sdt : [xbiszid] anbied we ca de terroiri nemar You may be surprised to find that (4)such large newspapers are (5)very cheap. They Sunday edition of a Japanese newspaper. news gnidrens S vbodzub are much cheaper than a newspaper in Japan. A large, heavy Sunday *edition of a gnition 4 weigh [wéi] : 重さが・・・である 11 edition [idifan] : (新聞の) ・・・版 1. こ 7 advertisement [ædvərtáizmənt]: but it is 20 times bigger than the newspaper in a big city may only cost about 350 yen, but it is zamit Jn979llib Jis moitos sme si bes ne E DAS C plot me juos ziqot installib yasm Juods xls) 62 . a b 2. (171 words) (

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