Which is a good example of contact force?

Pushing a car up a hill" is one of the "example as force is continuously applied by the person on the car

In physics, a contact force is a force that acts at the point of contact between two objects, in contrast to body forces. One example would be  Kicking a Soccer ball. Here force is applied to the ball with a given mass for a given time and we can see the ball is moving away with some velocity in a particular direction.