A 2 kg toy car moves at a speed of 5 m/s. a. What is the kinetic energy of the car?b. If a child applies a 3 N force for 2 m in the same direction the car is already moving, how much work is done on the car?c. What is the change in the car’s kinetic energy from the applied force?d. What is the final kinetic energy of the car?e. What is the velocity of the car after the child applies the 3 N force?

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.