The angle of friction ($\lambda$) and the angle of repose ($\theta$) are related as:
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Question

The angle of friction ($\lambda$) and the angle of repose ($	heta$) are related as:

Accepted Answer

The angle of friction is equal to the angle of repose for a given pair of surfaces in contact, i.e., $\lambda = 	heta$. Both are equal to the inverse tangent of the coefficient of static friction.

Laws of Motion

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