Here's a breakdown:
* Gravity: Earth's gravity pulls the object downwards.
* Normal Force: This is an upward force exerted by a surface supporting the object, counteracting gravity.
* Friction: If the object is on a surface, there might be friction opposing any potential motion.
* Other forces: Other forces might be present, like air resistance or tension from a string.
Example: A book resting on a table.
* Gravity: Pulling the book downwards.
* Normal Force: The table pushes upwards on the book, equal in magnitude to gravity.
* Friction: If the book is not perfectly smooth, there might be a small frictional force preventing it from sliding.
Key Point: The forces are balanced, resulting in a net force of zero, which is why the book remains at rest.
