請問force-time graph 嗰條直/曲線同面積所表達嘅意思係咩？
例如velocity-time graph:
直線=uniform velocity
斜線=uniform acceleration
Slope=acceleration
面積=displacement
我只知道force同acceleration喺graph成正比，
其餘唔太清楚，請解答，thank you!
F.4 physics force-time graph
2014-02-05 6:31 pm
回答 (1)
2014-02-05 7:23 pm
✔ 最佳答案
In a force-time graph:slope = rate of change of force
hence, a horizontal straight line ==> constant force
straight line with +ve slope ==> force increases linearly with time
straight line with -ve slope ==> force decreases linearly with time
area under force-time curve = impulse (i.e. force x time)
Because impulse = change of momentum
the area thus also represents the change of momentum of an object under which the force acts.
收錄日期: 2021-04-13 19:57:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140205000051KK00043