an object of 2 kg mass rough horizontal plane. the object if given 10 N force parallel to the plane that it moves with 2m/s acceleration. if g=10 m/s, the frict

Diket :
massa benda, m = 2 kg
gaya tarik, F = 10 N
percepatan benda, a = 2 m/s²
percepatan gravitasi Bumi, g = 10 m/s²

Tanya :
koefisien gesekan, μ = __?

Jawab :

Step 1
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cari gaya gesekan, fk = __? 
gunakan Hukum 2 newton
ΣF = m.a
F - fk = m.a
10 - fk = 2.2
10 - fk = 4
fk =  6 N

Step 2
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gaya gesekan
fk = μ. N
fk = μ. w
fk = μ. m.g
6 = μ. 2. 10
6 = 20.μ
μ = 6/20
μ = 0,3

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