To show that K i + U g i + U e i + W tot = K f + U g f + U e f + Δ E th is the same as W tot = Δ K + Δ U for a particle.

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Chapter 9, Problem 49PQ

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To show that Ki+Ugi+Uei+Wtot=Kf+Ugf+Uef+ΔEth is the same as Wtot=ΔK+ΔU for a particle.

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