As the sloped surface supporting a shoe becomes steeper
A)the shoe's weight mg remains unchanged.
B)the normal force becomes less.
C)friction needed to keep it at rest increases.
D)all of the above
E)none of the above

Question

Quizplus · Accepted Answer

The weight of the shoe (mg) remains constant regardless of the slope, the normal force decreases as the slope becomes steeper because it is the component of the weight perpendicular to the surface, and the friction needed to keep the shoe at rest increases to counteract the component of gravity parallel to the slope.

As the Sloped Surface Supporting a Shoe Becomes Steeper