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3. (8 points) Im driving down the highway in my car, at a speed of 25 m/s. Some jerk cuts me off and rapidly slows down, so I have to slam on my brakes to avoid hitting him. (a) (4 points) If I brake for 5.0 s down to a speed of 15 m/s, what was my acceleration during that period? You may assume that my acceleration was constant. (b) (4 points) what distance did I travel during the period in which I was braking
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