Answer:
1. A. Upward force is directed as you stand on the floor (Newtons Law Of Gravitation)
2. A. Cars continuesly roll down hills (it affects the motion of the car against the force of gravity along the road as it continously roll down hills and eventually stop)
3. It moves in the direction between the foot and the furniture and the floor. It causes the objects that moves along a surface to slow down and eventually stop. It is a force that opposes motion between two surfaces touching each other.
I hope it helps, Thank u!
