Abattery-operated car utilizes a 12.0 v system. initially, the car is at rest at the base of a 160 m high hill. some time later, the 741 kg car reaches the top of the hill with a speed of 25.0 m/s. how much charge did the batteries move through the motor to accomplish this, neglecting friction? note that a battery provides energy by moving charge through the battery voltage, which is 12 v in this case. (hint: the car clearly gains kinetic energy and gravitational potential energy, so that energy most be coming from somewhere. what object in this problem is the original source of that energy? )