Question

A box slides to the right along a horizontal surface which is true about the friction force

It act perpendicular to the surface and is determined by the speed of the box
It is a force in the direction of the motion that allows the box to move
It is a force that is determined by the normal force in the acts in opposition to the direction of motion
It is a force that is determined by the surface area of contact and ask opposite the direction of motion

Answer 1

It is a force in the direction of the motion that allows the box to move

Step-by-step explanation: