physics - projectile motion
回答 (1)
2007-08-18 1:45 am
✔ 最佳答案
Reslove vertically:s=ut+a(t*2)/2
-500= -10(t*2)/2------------(u=0)
t=10s
Reslove horizontally:
s=ut-----------------(a=0)
d=200t
d=2000m
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070817000051KK03649