Ff
FA
Fn
In the direction applied
FT
Perpendicular to the surface
Fg
Type of Friction force in the air
In the direction of the pull
Opposite to the motion of the object
Force caused by the contact of two surfaces
Opposite to motion, and parallel to the ground
Force caused by someone/something pushing or pulling something
ALWAYS DOWN
Force caused by a string, rope, wire, chain, cable...etc
Fair
The force that gravity pushes down on you, also known as weight
Support Force from a surface
