物理的公式表，求中３－中４的
回答 (1)
2006-12-29 8:25 pm
✔ 最佳答案
中3:2as = v² - u²
v = u + at
s = (v + u) t / 2
s = ut + 1/2 at²
F =ma
中4:
w = mg (F = ma 既free falling 表達方式)
Work done = FS
KE (Change in Kinetic Energy) = 1/2 mv² - 1/2 mu²
PE = mgh
v = 開方(2gh)
Ft = mv-mu (Impulse = change in momentum)
動量恆守定律:
m1u1+m2v2 = m1v1 + m2v2
elastic collision:
u1-u2 = v2-v1
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061229000051KK00806