Russell and Marco are trying to lift their friend Colin onto a tree branch. Russell is pushing
Colin upward with a force of 250'N. Marco is pushing Colin upward with a force of 310 N.
Earth's gravity is pulling Colin downward with a force of 520 N.
Assume all other forces on Colin are balanced. Which statement describes the forces on
Colin?
The forces are balanced, so there is no net force on Colin.
The forces are unbalanced, so there is a net force on Colin.