A Block of Mass M Sits at Rest on a Rough

Multiple Choice

A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal.What must be true about the force F that the ramp exerts on the block perpendicular to the surface of the ramp?

A) F > mg
B) F > mg cos θ
C) F > mg sin θ
D) F = mg cos θ
E) F = mg sin θ