A block of mass m=2 kg is resting on a rough inclined plane of inclination 30∘ as shown in figure. The coefficient of friction between the block and the plane is μ=0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane ? (g=10m/s2)
(A) zero
(B) 6.24 N
(C) 2.68 N
(D) 4.34 N