不懂過程如何積分~求過程詳解?
回答 (2)
2018-11-29 12:38 pm
✔ 最佳答案
A=∫(50 to 0)_v/(－0.001v－9.8)dv=∫(0 to 50)_v/(0.001v+9.8)dv
=1000∫(0 to 50)_v/(v+9800)dv
A/1000=∫(0 to 50)_v/(v+9800)dv
=∫(0 to 50)_1dv－9800∫(0 to 50)_1/(v+9800)dv
=50－9800*ln(9850/9800)
=50－49.8721
=0.1279
A=127.9
收錄日期: 2021-04-18 18:11:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20181128092433AAXP1Zc