作者fred0780 (豆沙包少爷)
看板Physics
标题[题目] 我重修物理~可是完全看不懂= =
时间Mon Oct 4 19:43:04 2010
[领域] (题目相关领域)
[来源] 老师出的 (课本习题、考古题、参考书...)
[题目]
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分钟
and with the speed 30km/h to north in next 30分钟 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?
拜托版上的物理高手们
帮帮重修物理很可怜的我
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 123.192.240.88
1F：→ hank780420:你需要的是翻译吗? 10/04 19:45
2F：→ fred0780:我需要的是解题 我本身的科系跟这样的物理没有太大的关联 10/04 19:45
3F：→ fred0780:我只是想好好交作业!! 可是完全不会写= = 10/04 19:45
4F：→ hank780420:这‧是‧高‧中‧物‧理 10/04 19:46
5F：→ fred0780:我怎麽知道= =我没有念过高中~我是高职毕业的= = 10/04 19:47
6F：→ j0958322080:翻成中文你就会了，第一题国中应该就可以了吧 10/04 19:48
7F：→ hank780420:课本等加速度运动这个章节麻烦自己精读一次好吗 10/04 19:50
8F：→ hank780420:告诉你答案你考试还是不会写 10/04 19:50
9F：→ nightkid:给鱼不如给钓竿 10/04 20:12
10F：→ xgcj: 给钓竿不如给渔网 10/04 20:16
11F：→ nightkid:交得出作业不代表你会过 搞懂他才能保证你会过 10/04 20:26
12F：→ nightkid:你心态不变的话 重修到大四都不会过 10/04 20:26
13F：推 ByronX:有些好像国中也可以解? 10/04 20:42
14F：推 Entropy1988:你知道什麽是加速度吗？ 10/04 20:42
15F：推 Narcissuss:弟一题是国中吧 你需要翻译机 10/04 20:53
16F：→ HDT:给渔网不如告诉你鱼市场怎麽走 10/04 21:58
17F：推 Ertkkpoo:那H大可以告诉我鱼市场往哪走嘛？谢谢罗 10/04 22:18
18F：推 YSimpson:开学了，这边要变成教作业版了 ㄎㄎㄎ 10/04 22:23
20F：推 Ertkkpoo: ↑这是？ 10/04 22:25
21F：→ j0958322080:中坜也有阿 10/04 23:00
22F：嘘 caseypie:这里的板友越来越客气了 10/05 04:11
23F：→ hank780420:我以为我够酸了对不起Orz 10/05 12:28