Flash Maddie is running at a whopping velocity of 30 mph. She then sees Mr. T driving down the road straight towards her so she accellerates -5 mph/s for 10 seconds. what Is Maddie's velocity now. (In mph)
V = Change in distance / change in time
a = change in velocity / change in time
The Attempt at a Solution
I'm just not sure how to approach the problem in general and I'm not sure how to approach the negative acceleration.