Can An Object Reverse Its Direction Of Travel While Maintaining A Constant Acceleration?if So,give An Example.if Not,explain Why.

If acceleration is in the opposite direction from the initial velocity, velocity will eventually reverse direction. Acceleration may be constant throughout the process. For example, an object thrown up will usually come down under the influence of the constant acceleration due to gravity.

Otherwise, the velocity vector will asymptotically approach the direction of the (constant) acceleration vector as time goes on.