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BESARAN, SATUAN DAN VEKTOR - Blog

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ω1<br />

− 1<br />

T = m ⋅ a<br />

3. Hukum III Newton F aksi = - F reaksi<br />

Aksi – reaksi tidak mungkin terjadi pada 1 benda<br />

4. Gaya gesek (fg) : * Gaya gesek statis (fs) diam fs = N.μ s<br />

* Gaya gesek kinetik (fk) bergerak fk = N. μ k<br />

. Statika<br />

Arah selalu berlawanan dengan gerak benda/sistem.<br />

N = w N = w – F sinα N = w + Fsinα N = w cos α<br />

∑ F =0 : * ∑ Fx =0<br />

∑ λ =0<br />

* ∑ Fy =0<br />

ΣFx = resultan gaya sumbu x<br />

ΣFy = resultan gaya sumbu y<br />

ΣF = resultan gaya<br />

m = massa<br />

a = percepatan<br />

N = gaya normal<br />

μs= koefisien gesek statis<br />

μk= koefisien gesek kinetik<br />

W = gaya berat<br />

α=sudut yang dibentuk gaya berat setelah diuraikan ke sumbu<br />

13

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