A person gets a running start toward a wall from 5 meters away . The person pushes the wall with a force of 50@ newtons , but the wall does not move. How much work is done by the person ?
0.01 joule
0 joule
100 joule
2,500 joule
0 joule
Work is calculated as force x distance x cosine of the angle between the force and the direction of motion. In this case, the wall does not move, so no work is done.