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Question Number 190257 by jlewis last updated on 30/Mar/23
Commented by jlewis last updated on 30/Mar/23
Commented by mahdipoor last updated on 31/Mar/23
x=Asin(Bt+ϕ)⇒x..+wx=−AB2sin(Bt+ϕ)+w2Asin(Bt+ϕ)=0⇒B=w⇒x=Asin(wt+ϕ)⇒{x(0)=0⇒ϕ=0orπx.(0)=v⇒v=Awcosϕif:x=Asin(wt+ϕ)v>0⇒ϕ=0A=vwv<0⇒ϕ=πA=−vwv=0⇒A=0
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