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Earlier discussion
1 older comment kept for context.
Oluwaseun Adeyemi
Object P
Q = QP ΔΘP = 2Θ
mP = M, To find CP:
QP = mcΔΘ = 2mCPΘ
Object Θ
Θ = QQ, ΔΘQ = Θ mQ = 2m
To find CQ:
QQ = mcQ
ΔΘ = 2mCQ × Θ
QQ = 2mCP Θ
But QP = QQ
2mCQΘ = 2mCPΘ
CQ = CP
CP/CQ = 1/1
CP:CQ = 1:1