Question

4. A mass placed on an inclined place is just in equilibrium. If u
is coefficient of friction of the surface, then maximum
inclination of the plane with the horizontal is
(a) tan-u
(b) tan-' (u/2)
(c) sin-1
(d) cos-1
μ​

Answer 1

Answer:

See in image.

Explanation:

See the answer in the image.

Answer 2

A mass placed on an inclined place is just in equilibrium. If u

is coefficient of friction of the surface, then maximum

inclination of the plane with the horizontal is:

If mu is coefficient of friction of the surface, then maximum inclination of the plane with the horizontal is.

(a) Maximum inclination of the plane with horizontal=angle of

repose = $tan^{-1}$(μ).

So, the correct option is a.