Is work done if a person pushes against car and it move?

In physics, work is defined as the transfer of energy from one system to another through the application of force over a displacement. In order for work to be done, the force applied to the object must cause it to move in the direction of the force.

In the given scenario, if a person pushes against a car and it moves, then work is done by the person. The person applies a force (push) to the car, and as a result, the car moves in the direction of the applied force. Therefore, the energy is transferred from the person to the car, and work is done.

To calculate the amount of work done, we can use the formula:

Work = Force × Displacement

In this case, the force is the force applied by the person pushing the car, and the displacement is the distance over which the car moves in the direction of the applied force. By multiplying the force and the displacement, we can determine the amount of work done by the person.

It's important to note that if the car does not move, or if it moves in a direction perpendicular to the force applied by the person, then no work is done. This is because the force is not causing any displacement in the direction of the force.