when a horse pulls a cart, the force that helps the horse to move forward is the force exerted by

When a horse pulls a wagon, the force that causes the horse to move forward is the force

When a horse pulls a cart, the force which is responsible for the movement of cart is

Name the force which helps things to move and stop.

What is the work done by a horse in displacing a cart through 5 m in the direction of the force if the force applied by the horse is 10 N?