A block rests on a rough inclined plane making an angle of \(30^\circ\) with the horizontal. The coefficient of static friction between the block and the plane is \(0.8\). If the fictional force on the block is \(10\, N\), the mass of the block (in kg) is (take \(g = 10\,m/s^2\))
1
\(2.0\)
2
\(4.0\)
3
\(1.6\)
4
\(2.5\)