The displacement of an object undergoing simple harmonic motion is given by X = Xmax cos ωt. Which expression in the key represents the acceleration of the object?
Ans:
A. Xmax ωcos ωt
B. -Xmax ωcos ωt
C. Xmax ω>2 cos ωt
D. -Xmax ω>2 cos ωt
E. Xmax ω sin ωt
F. -Xmax ω sin ωt
G. Xmax ω>2 sin ωt
H. -Xmax ω>2 sin ωt
Acceleration
2008-03-03 3:24 am
回答 (1)
2008-03-03 3:38 am
✔ 最佳答案
x = Xmax cosωtv=dx/dt=-Xmax sinωt
a=dv/dt=-Xmaxω² cosωt i.e. D maybe
收錄日期: 2021-04-13 15:14:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080302000051KK02971