Question

Jill is pushing a box across the floor. Which represents the upward force perpendicular to the floor?

A. Fp
B. Ff
C. FN
D. Fg

Answer 1

FN

It would be the normal force, represented with

What is the normal force?

We define normal forces as the forces that surfaces push against other surfaces so solid objects don't pass through each other.

In this case, the box lies on the floor. So the floor will make a normal force against the box. And that force is normal to the floor (so it is perpendicular to the surface).

This is the only upward force perpendiclar to the floor that affects the box, and is represented as:

If you want to learn more about normal forces, you can read:

Step-by-step explanation:

Answer 2

I think it fb I’m not really sure