What are forces acting upon him?

Question

If I were to draw a free body diagram on the "headless horseman" looking for his head, what forces would be acting upon it? Please label and explain.

 

Thank you

Answer 1

The forces that will be acting upon it are acceleration due to gravity (downward force), normal force (opposite direction to acceleration due to gravity), and a horizontal force acting in the same direction as the headless horsemen's motion.  We can also add a frictional force, for when the horsemen pulls the breaks on his horse.

Answer 2

Gravity, wind resistance (riding the horse), fricition.