pls help Which forces are shown on a free body diagram?

visible forces that act on an object

the effect of forces acting on an object

only forces that cannot be seen

all of the forces acting on an object

Respuesta :

Answer:External forces acting on an object may include friction, gravity, normal force, drag, tension, or a human force due to pushing or pulling. When in a non-inertial reference frame (see coordinate system, below), fictitious forces, such as centrifugal pseudoforce are appropriate.

Explanation: