Determine the change in velocity of a car that starts at rest and has a final velocity of 20m/s north

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Question:

Determine the change in velocity of a car that starts at rest and has a final velocity of 20m/s north

Answer:

Im not too sure if I just dont understand but if something starts at rest, its not moving so Vi would be 0m/s and if the final velocity would be 20m/s North. Than the change would be 20m/s, its not asking for displacment so you don’t need direction. I got my answer from doing Change in Velocity = Final velocity – Initial velocity

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