A car is travelling on the highway at 28 m/s The driver sees a tree in the middle of the road and slams on the brakes. The car comes to a complete stop over a distance of 35 m. What was the acceleration of the car as it was coming to a stop?

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.