- #1
physicos
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- 1
Homework Statement
A 100 kg refrigerator is on rest on the floor.How much work is needed to move the refrigerator at a constant speed for 6 m along with a floor friction force of 200 N ?
Homework Equations
I used ΔK = W(Fg)+ W (N) + W(f)+ W(T) =0
and W(Fg)+ W (N) = 0
so W(T)=-W(f)=f* Δl
The Attempt at a Solution
The needed work is W(K)= 1200 J
Is it correct ??