Physics problem: how to do, thanks.?
回答 (1)
2021-02-05 11:31 pm
✔ 最佳答案
t = √(2h/g) = √(24/9.8) = 1.56 sv = √(2gh) = √(24•9.8) = 15.3 m/s (horizontal component)
vertical component = 12 m/s
combined, that is
v = √(12² + 15.3²) = 19.5 m/s
θ = arctan (15.3/12) = 51.9º with horizontal
收錄日期: 2021-04-24 08:12:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20210205145954AAdE6Mz