An object that is accelerating may be:
- a not moving.
- b changing direction.
- c slowing down.
- e gaining speed.
Explanation:
- a: An object can be accelerating (e.g., in free fall) even if it starts from rest, so it can have an acceleration while not having a velocity.
- b: Acceleration includes changes in direction, so an object can be accelerating while changing its direction even if its speed remains constant.
- c: An object can accelerate negative velocity (decelerate), which means it is slowing down.
- e: Gaining speed is also a form of acceleration.
d (traveling at a constant speed) is incorrect because if an object is moving at a constant speed, its acceleration is zero.