Question

question 2 of 10 when drawing a free - body diagram for an object on an inclined surface, which way does the friction force point? a. straight down b. straight up c. perpendicular to the surface d. parallel to the surface

Explanation:

Friction resists relative motion between surfaces in contact. For an object on an inclined - surface, the friction force acts parallel to the surface to oppose the sliding motion of the object. It can act up - slope (when the object is trying to slide down) or down - slope (when an external force is trying to push the object up the slope). But in all cases, it is parallel to the surface.

Answer:

D. Parallel to the surface