A block $A$ kept on an inclined surface just begins to slide if the inclination is $30^{\circ}$. The

Question

A block $A$ kept on an inclined surface just begins to slide if the inclination is $30^{\circ}$. The block is replaced by another block $B$ and it is found that it just begins to slide if the inclination is $40^{\circ}$.

Professor PC Thomas Classes · Answer

See detailed solution for explanation.