4. In the previous section you used the equation of motion to determine the acceleration of the skidding car on WET PAVEMENT . You must now reconsider this answer to include the additional ramp acceleration. Consider the direction of your friction force compared to the direction of gravitational force that pulls the car down the ramp. Are you going to add or subtract this extra acceleration from your original? Explain your choice below: Acceleration of Car (including decline effect) a = Explain why you added or subtracted your acceleration determined in (3) above