AP and TS EAMCET Engineering Model Paper 3

A block of mass M placed on a rough incined plane of inclination θ = 30° can just be prevented from sliding down by applying a force F1 up the plane and it can be just made to slide up the plane by applying a force F2 up the plane. If the coefficient of friction between the block and the inclined plane is

1

2√3

, the relation between F1 and F2 is