* Acceleration is the rate of change of velocity. This means acceleration describes how quickly the velocity is changing, not just whether it's changing.
* Constant acceleration doesn't mean zero acceleration. A body can have a constant, non-zero acceleration.
Examples:
* Projectile Motion: A ball thrown straight up in the air has a constant downward acceleration due to gravity. Even though its velocity changes (first upwards, then downwards), the acceleration remains constant.
* Car Accelerating: A car accelerating at a steady rate has a constant acceleration. Its velocity will increase, but the rate of that increase (the acceleration) remains the same.
Key Points:
* Velocity is a vector: It has both magnitude (speed) and direction. Acceleration can change the magnitude, the direction, or both.
* Constant acceleration doesn't mean constant speed. A body can be accelerating even if its speed is constant (like an object moving in a circle).
Let me know if you'd like to explore any of these examples in more detail!