Acceleration is about change in velocity, not just speed.
* Speed refers to how fast an object is moving.
* Velocity includes both speed and direction.
Here are some scenarios where a body can accelerate while maintaining a constant speed:
* Circular motion: Imagine a car going around a roundabout at a constant speed. Even though the car's speed remains the same, its direction is constantly changing (it's moving in a circle). This change in direction means the car's velocity is changing, and therefore it's accelerating.
* Orbital motion: A satellite orbiting the Earth experiences acceleration due to gravity, even though its speed may be roughly constant. The acceleration is directed towards the center of the Earth, changing the satellite's direction and therefore its velocity.
In summary: Acceleration is about the change in velocity. If an object's velocity is changing, even if its speed is constant, then the object is accelerating.
