Question

25: Show that tano=u, where is angle of repose and r is coefficient of friction​

Answer 1

Answer:

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Explanation:

To prove:θ=φ

∑Fy=0

N−Wcosθ=0

N=Wcosθ

∑Fx=0

−Wsinθ+F=0

F=Wsinθ

µN=Wsinθ

µWcosθ=Wsinθ

µ=tanθ    but,

µ=tanφ

tanφ=tanθ

φ=θ−−−proved