Consider a box of mass m sitting on an inclined plane. The inclined plane makes an angle θ with the horizontal and the coefficient of static friction between the box and the surface is μ. What minimal condition must exist if the box is to accelerate down the incline?
A) mgsinθ < μFn
B) mgsinθ = μFn
C) mgsinθ > μFn
D) mgcosθ > μFn