Question

What type of forces is acting on an object that prevents the object from moving?
You push on a skateboard and it moves. What type of forces are responsible for its motion?

Answer 1

Unbalanced forces acting on an object will change the object's motion. Unbalanced forces can also stop a moving object. The three main forces that stop moving objects are friction, gravity and wind resistance. Equal forces acting in opposite directions are called balanced forces.