Final answer:
If there was not a frictionless surface, the object would experience friction, which would slow it down over time. Without friction, the object would continue to move at a constant velocity in a straight line. Examples of friction in everyday life include car tires on the road and pen on paper.
Step-by-step explanation:
Friction is a force that opposes the motion of an object when its surface comes into contact with another surface. If there was not a frictionless surface, the object would experience friction, which would slow it down over time. This is consistent with Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
Without friction, the object would continue to move at a constant velocity in a straight line, as explained by Newton's first law of motion. For example, on a frictionless ice surface, an object would slide indefinitely without slowing down.
Some examples of friction in everyday life include the resistance between car tires and the road, the friction between a pen and paper when writing, and the friction between the soles of shoes and the ground when walking.