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A. Gaya gesek (fk) = N.μ = (m.g).μ = (0,5.10).0,2 = 1N
B. Sigma F = m.a
F - fk = m.a
15 - 1 = 0,5.a
14N = 0,5a
a = 14/0,5 = 28 m/s^2
Keterangan
Koef.gsek = μ
Karna ga ada sudutnya, maka N = m.g (kalo ada harus dikali cosinusnya)
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