Often a wedge-shaped doorstop won’t hold a door open unless you kick it until it sits tightly under the door.
What does forcing the wedge into a tight fit accomplish?
Select all the choices that apply.
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Doing so increases the coefficient of friction.
Doing so increases the normal force between the floor and the bottom of the wedge.
In this position, moving the door INTO the wedge (to close it) will increase the static friction force between the wedge and the floor.
Doing so causes the friction to become kinetic friction instead of static friction.
Ghosts. It keeps ghosts from pushing the door shut.
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