According to classical physics, accelerated velocity can change suddenly, but velocity itself does not change abruptly. Let's explore these concepts in more detail:
- Accelerated Velocity Changing Suddenly: Acceleration refers to a change in velocity over time. If an object's velocity changes suddenly, it means there is an instantaneous change in its speed and/or direction. This change in velocity can occur due to various factors, such as the application of a force or the removal of a force.
For example, if a car is traveling at a constant speed of 50 km/h and the driver suddenly applies the brakes, the car's velocity decreases rapidly, resulting in a sudden change in its accelerated velocity.
- Velocity Changing Suddenly: Velocity, on the other hand, is a vector quantity that includes both speed (magnitude of velocity) and direction. In classical physics, velocity does not change abruptly or instantaneously without any external influence. According to Newton's laws of motion, an object's velocity can only change if it experiences an external force.
For instance, if a ball is thrown vertically upward, its velocity gradually decreases due to the force of gravity until it reaches its highest point. At that moment, the ball's velocity momentarily becomes zero before changing direction and increasing in magnitude as it falls back down.
In summary, while accelerated velocity can change suddenly due to abrupt changes in speed or direction, velocity itself does not change abruptly in classical physics. Velocity changes occur continuously and are influenced by external forces acting upon an object.