While driving a Honda Civic at 60 mph down a road, you spot a stopped vehicle ahead and slam on your brakes to avoid a collision. Treat driving forward as the positive direction. You can assume the acceleration is constant. a. If the stopping distance for the Civic from 60 mph is 122 feet, what is the corresponding acceleration (magnitude and sign) to come to a halt? There are 5280 feet in a mile and 1 meter has 3.28 feet. b. If the stopping acceleration of the car is constant regardless of starting speed, by what factor would the stopping distance change if you were driving half as fast? Show how you know and explain fully. Thank you