Final answer:
In a scenario with no friction, a bowling ball that has been pushed experiences the gravitational force pulling it towards the Earth and the normal force exerted by the surface that prevents it from falling through, with no other forces like friction or air resistance acting upon it.
Step-by-step explanation:
Assuming there is no friction involved, the forces acting upon a bowling ball after it is pushed would be the gravitational force and the normal force. The gravitational force is a constant force that acts on all objects with mass and pulls them towards the center of the Earth. In the context of a bowling ball on a surface, this force would be balanced by the normal force, which is the force exerted by the surface that is perpendicular to it, preventing the ball from falling through the surface. Since we assume no friction and negate air resistance in this scenario, these would be the only two forces acting on the ball. In the absence of friction, once the ball is in motion, it would continue to move at a constant velocity according to Newton's First Law of Motion, known as inertia. Friction traditionally acts in the opposite direction to the motion of the ball and slows it down, but since it is disregarded here, the ball would not experience this force. Air resistance could also act on the ball, but since we are assuming a frictionless scenario, we can often simplify the model by ignoring air resistance as well.