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.
* Constant Velocity: Constant velocity means the object is not accelerating. Acceleration is the rate of change of velocity.
* Newton's Second Law of Motion: This law states that force is directly proportional to acceleration (F = ma). If acceleration is zero (constant velocity), then the force must also be zero.
In simpler terms: If something is moving at a steady speed in a straight line, it's because there's no net force pushing or pulling on it. All the forces acting on it are balanced.
