Hukum Newton pada Bidang Miring

Diagram gaya bidang miring

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$\begin{aligned} Σ F_{y} & = 0 \\ N - w . \cos θ & = 0 \\ N & = w . \cos θ \end{aligned}$

$\begin{aligned} Σ F_{x} & = m . a \\ w . \cos θ - f_{k} & = m . a \\ w . \cos θ - μ_{k} . N & = m . a \end{aligned}$