作者fred0780 (豆沙包少爺)
看板Physics
標題[題目] 我重修物理~可是完全看不懂= =
時間Mon Oct 4 19:43:04 2010
[領域] (題目相關領域)
[來源] 老師出的 (課本習題、考古題、參考書...)
[題目]
物理重修 我是物理白吃= =
(1)a bus slows down with constant acceleration from 12 m/s to 8 m/s
moves 40 m in this process (a)How much further does it travel from
beginning to stop? (b)How long does it take to stop from 8 m/s
(2)Suppose that ball is thrown upward at arrive a maximum height 19.6m
above the cliff,so that the ball can fall to the base of the cliff 58.6m
below. (a)What is the initial velocity (b)How long does it take the ball
to reach the base of the cliff?
(3)An object moves along the X-axis according the equation x = 2t^2 -4t +1
where x is in meters and t is in seconds. Find (a) the instantaneous
velocity and acceleration at t=2s; (b)the average velocity and acceleration
from t=1.5s to t=2.5s
(4)A car travels with speed 40km/h to north of east 37度 in the first 30分鐘
and with the speed 30km/h to north in next 30分鐘 finally with 50km/h to
south of east 53度 in last 1 hour. Find (a)the total travel distance ?
(b) the final position relative the origin position?
拜託版上的物理高手們
幫幫重修物理很可憐的我
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1F：→ hank780420:你需要的是翻譯嗎? 10/04 19:45
2F：→ fred0780:我需要的是解題 我本身的科系跟這樣的物理沒有太大的關聯 10/04 19:45
3F：→ fred0780:我只是想好好交作業!! 可是完全不會寫= = 10/04 19:45
4F：→ hank780420:這‧是‧高‧中‧物‧理 10/04 19:46
5F：→ fred0780:我怎麼知道= =我沒有念過高中~我是高職畢業的= = 10/04 19:47
6F：→ j0958322080:翻成中文你就會了，第一題國中應該就可以了吧 10/04 19:48
7F：→ hank780420:課本等加速度運動這個章節麻煩自己精讀一次好嗎 10/04 19:50
8F：→ hank780420:告訴你答案你考試還是不會寫 10/04 19:50
9F：→ nightkid:給魚不如給釣竿 10/04 20:12
10F：→ xgcj: 給釣竿不如給漁網 10/04 20:16
11F：→ nightkid:交得出作業不代表你會過 搞懂他才能保證你會過 10/04 20:26
12F：→ nightkid:你心態不變的話 重修到大四都不會過 10/04 20:26
13F：推 ByronX:有些好像國中也可以解? 10/04 20:42
14F：推 Entropy1988:你知道什麼是加速度嗎？ 10/04 20:42
15F：推 Narcissuss:弟一題是國中吧 你需要翻譯機 10/04 20:53
16F：→ HDT:給漁網不如告訴你魚市場怎麼走 10/04 21:58
17F：推 Ertkkpoo:那H大可以告訴我魚市場往哪走嘛？謝謝囉 10/04 22:18
18F：推 YSimpson:開學了，這邊要變成教作業版了 ㄎㄎㄎ 10/04 22:23
20F：推 Ertkkpoo: ↑這是？ 10/04 22:25
21F：→ j0958322080:中壢也有阿 10/04 23:00
22F：噓 caseypie:這裡的板友越來越客氣了 10/05 04:11
23F：→ hank780420:我以為我夠酸了對不起Orz 10/05 12:28