Physics Help!!!!

Describe what it means (describe the motion) if the acceleration vector has the same direction as the velocity vectors, and what it means if the acceleration vector has the opposite direction as the velocity vectors. Consider all four possibilities and explain what would happen in all cases.

a) velocity vectors positive, acceleration vector positive.

b) velocity vectors positive, acceleration vector negative.

c) velocity vectors negative, acceleration vector negative.

d) velocity vectors negative, acceleration vector positive.

Thanks!

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