Final answer:
Yes, an object with a constant speed can be accelerated if it is changing its direction of motion. This happens because acceleration is defined as the change in velocity, which includes both speed and direction. For example, an object in uniform circular motion is constantly changing direction, hence it is accelerating.
Step-by-step explanation:
Can an object with constant speed also be accelerating? The correct answer is B) Yes, because the object could be changing direction, which is a type of acceleration. Acceleration is defined as the change in velocity, which is a vector quantity having both magnitude and direction. Therefore, an object can have a constant speed but still be accelerating if it is changing its direction of motion. For example, in a uniform circular motion, the speed of the object remains constant, but the direction changes continuously, causing the object to accelerate. Keep in mind that acceleration does not always imply a change in speed; it can also occur with a change in direction only. This is in accordance with Newton's laws of motion, where a force causing a change in velocity results in acceleration. So when an object's direction of motion changes, even without a change in speed, it's still experiencing acceleration.