* Newton's Second Law: This fundamental law of physics states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In other words, force causes acceleration.
* Acceleration and Velocity: Acceleration is the rate of change of velocity. This means if an object is accelerating, its velocity is changing.
* Types of Velocity Changes: The net force can cause:
* Increase in speed: If the force is in the same direction as the object's motion, the object will speed up.
* Decrease in speed: If the force is in the opposite direction to the object's motion, the object will slow down.
* Change in direction: If the force acts at an angle to the object's motion, the object will change direction.
In summary: A net force acting on an object will always lead to a change in its velocity. This change can involve a change in speed, direction, or both.
