As the object in the picture moves from point A to point D across the surface, the sum of the gravitational and kinetic energies_____. A. decreases only B. increases and then decreases. C. decreases and then increases. D. remains the same. The object will have the maximum Kinetic Energy at point___. A B C D The object will have the maximum Potential Energy at point____. A B C D If the car has a mass of 1000kg and starts at rest, what is the speed of the car at point C