A car starts from rest and travels for 6.0 seconds with a constant acceleration of +1.5 m/s². Then the driver sees a skunk on the road in front of the car, so the driver applies the brakes. This causes a uniform acceleration of a = -2.0 m/s². If the brakes are applied for 2.0 seconds,
a) How fast is the car going at the end of the braking period?
b) How far has the car traveled?
c) What is the car's average velocity for the total 8.0 seconds?