I know this may sound like a simple question but i am struggling to get my head around the concept of a Normal Force.

I know that the definition of a Normal Force is the force that is perpendicular to the surface the object in question makes, but i am trying to visualize this.

I have an object of some mass that is stationary on a sloped surface at angle theta (no friction forces exist).

A download ward force is created due to the objects Mass.

As this object is stationary the ground exerts an equal and opposite reaction force.

I have tried to show this in my diagram below:-

This is where i get a confused.

Am i correct in thinking that the reaction force can be split into two component forces.

I have tried to show how i have split the reaction force into two below:-

As you can see that i have split the Reaction Force into two Forces F2 which is my Normal force because it is perpendicular to the ground.

And a secondary force which i have called F3 - but what would F3 be called?

Also would the angle Theta be the same at the corners i have shown?

I hope this makes sense?

Thank you.