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Weight of body = 500N
so normal force(N) = weight = 500N

it just slides when 200N force acts on it. Since on a rough surface a body just slides when it just overcomes the friction,
the friction force = 200N
⇒μN = 200
⇒μ = 200/N
⇒μ = 200/500 
μ = 0.4
0 0 0
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