Question

A body placed on a rough inclined plane just begins to slide, when the slope of the plane is 1 in 4. Calculate the coefficient of friction.

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Answer 1

Given ↓

Slope = 1 in 4

To find ☆

Coefficient of friction

Solution →

Tan Ø = Friction / Normal.

= Umg cos Ø /mg cos Ø

Tan Ø = u

From the diaphragm of inclined 1 in 4 mass

Tan ∅ = Perpendicular / base

Tan Ø = 1/4

[We know tan Ø = u]

•.• u = 1/4

Answer :- 1/4