Answer:
D) less than the gravitational force of the brick.
Explanation:
When a brick is at rest on the inclined plane
then we will have all forces balanced on the brick
so we will have force balance along the inclined plane given as
[tex]F_g sin\theta = F_f[/tex]
[tex]mg sin\theta = F_f[/tex]
on the other side we can find force balance perpendicular to the inclined plane
[tex]mg cos\theta = F_n[/tex]
so from above equation we can say that friction force is the component of the weight of the object along the inclined plane
so correct answer is
D) less than the gravitational force of the brick.
