* Velocity is a measure of both speed and direction. An object can be moving at a constant speed in a straight line, meaning it has velocity, but not accelerating.
* Acceleration is the rate of change of velocity. For an object to accelerate, its velocity must be changing. This could mean:
* Change in speed: The object is speeding up or slowing down.
* Change in direction: The object is turning or changing its path.
Example:
Imagine a car driving at a steady 60 mph on a straight highway. It has velocity (60 mph eastward), but it's not accelerating because its speed and direction are constant.
Key Point: An object can have a constant velocity if its speed and direction are not changing.
