Here's why:
* Newton's Second Law of Motion: This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In simpler terms, the more force applied, the more the object will accelerate.
* Unbalanced Forces: When forces are unbalanced, there is a net force acting on the object. This net force is the difference between the forces acting in opposite directions.
* Acceleration: As a result of the net force, the object will change its velocity, either by increasing speed, decreasing speed, or changing direction. This change in velocity is acceleration.
Examples:
* Pushing a box across the floor: You apply a force, and the box accelerates in the direction of the force.
* A ball thrown in the air: Gravity pulls the ball down, causing it to accelerate downwards.
* A car accelerating from a stop: The engine force is greater than the frictional forces, resulting in acceleration.
In conclusion, unbalanced forces lead to acceleration, which means a change in the object's velocity.
