Can an object with constant acceleration reverse it's direction of travel?

I think it's yes because when a ball is thrown in the air it has a constant acceleration of gravity and the acceleration continues when it reverses it's direction.

Am I right??

correct. And, when you slow down to stop in a car.

Thanks

or reverse a boat engine while steaming forward :)

Yes, you are correct. An object with constant acceleration can indeed reverse its direction of travel. This is because the direction of the acceleration and the direction of the velocity of the object are not necessarily the same.

In the example you provided, when a ball is thrown in the air, it experiences a constant acceleration due to gravity. Initially, the ball's velocity is upward, opposing the direction of the acceleration. However, as the ball moves upward, its velocity decreases due to the acceleration. Eventually, the ball's velocity becomes zero, and then starts to increase in the opposite direction as it falls back down to the ground.

This change in direction of the ball's velocity demonstrates that an object with constant acceleration can reverse its direction of travel.