"Toy Car A" is propelled by elastic force. The other forces acting on the car are gravity (pulling the car down) and friction force (between the car and the floor). What UNBALANCED forces are acting on the car?


"Toy Car B" is propelled by air resistance. The other forces acting on the car are also gravity and friction force. What BALANCED forces are acting on the car?

In the case of "Toy Car A", if it is propelled by elastic force, the unbalanced forces acting on the car are gravity pulling the car down and the elastic force propelling the car forward. These forces are not balanced because the elastic force is stronger in one direction, causing the car to move.

For "Toy Car B", if it is propelled by air resistance, the balanced forces acting on the car are gravity pulling the car down and the air resistance pushing against the car's motion. These forces are balanced because the force of gravity is equal to and opposite to the force of air resistance, resulting in a net force of zero and a constant velocity for the car.

To determine the unbalanced forces acting on "Toy Car A," we need to assess the forces that are not balanced or cancelled out by opposing forces.

In this case, the elastic force propels the car forward, while gravity pulls the car downward, and friction force acts in the opposite direction of the car's motion.

Since the elastic force is the force causing the car to move, it is the unbalanced force acting on the car. The force of gravity and the friction force are balanced forces because they are acting in opposite directions and cancel each other out.

On the other hand, for "Toy Car B," which is propelled by air resistance, the forces are balanced. Gravity still pulls the car downward, friction force acts in the opposite direction of the car's motion, and air resistance propels the car forward.

The force of gravity is balanced by the opposing forces of friction and air resistance, which act in the opposite direction. As a result, the forces are balanced, meaning there are no unbalanced forces acting on "Toy Car B."