1. Applied Force: This is the force that directly causes a change in motion. Pushing a car to make it move, or the wind propelling a sailboat are examples of applied forces.
2. Friction: This is a force that opposes motion. It arises from the interaction between surfaces in contact. Examples include friction between tires and the road, air resistance on a moving car, or friction between a book sliding on a table.
3. Gravity: This is the force of attraction between objects with mass. For objects near the Earth's surface, gravity pulls them downwards, affecting their speed as they fall.
It's important to note that these are just three examples, and the specific forces acting on an object will depend on the situation.
