Assume all other forces on Tamir are balanced. Which statement describes the forces on Tamir?
A: The forces are balanced, so there is no net force on Tamir.
B: The forces are unbalanced, so there is a net force on Tamir.
To determine if there is a net force on Tamir, look at the forces:
Earth's gravity is pulling Tamir down with a force of 400 N.
The diving board is pushing Tamir up with a force of 400 N.
The forces are in opposite directions, and the forces have the same magnitude: 400 N. This means that the forces are balanced, so there is no net force on Tamir.