Whats a similarity between distance and displacement

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Does anyone have the answers to online physics course plato course physics, semester a v3.0

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system