Weight of the carriage 
Normal force 
Frictional force 
Acceleration 
Explanation:
We have to look into the FBD of the carriage.
Horizontal forces and Vertical forces separately.
To calculate Weight we know that both the mass of the baby and the carriage will be added.
- So Weight(W)  
To calculate normal force we have to look upon the vertical component of forces, as Normal force is acting vertically.We have weight which is a downward force along with  , force of
, force of  acting vertically downward.Both are downward and Normal is upward so Normal force
 acting vertically downward.Both are downward and Normal is upward so Normal force 
- Normal force (N)  
- Frictional force (f)  
To calculate acceleration we will use Newtons second law.
That is Force is product of mass and acceleration.
We can see in the diagram that  and
 and  component of forces.
 component of forces.
So Fnet = Fy(Horizontal) - f(friction) 
- Acceleration (a) = 
So we have the weight of the carriage, normal force,frictional force and acceleration.