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 normal force F on the block due to 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

Question

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 normal force F on the block due to 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

Quizplus · Accepted Answer

The normal force F on a block on an inclined plane is equal to the component of the gravitational force perpendicular to the surface, which is mg cos θ.

A Block of Mass M Sits at Rest on a Rough