Here's why:
* Newton's First Law of Motion: This law states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
* Balanced Forces: When forces are balanced, they cancel each other out. This means the net force (the overall force) acting on the object is zero.
Example:
Imagine a book sitting on a table.
* Gravity: The force of gravity pulls the book downwards.
* Normal Force: The table pushes upwards on the book with an equal and opposite force.
These two forces are balanced, so the book remains at rest.
Key Takeaway: An object at rest remains at rest because the forces acting upon it are balanced, resulting in a net force of zero.
