A light, rigid square plate ABCD ABCD\,ABCD with side length 0.5 m lies on a smooth, horizontal surface. Four coplanar forces of magnitudes 12 N and 8 N act along its edges in the directions shown in the diagram below.
Which statement correctly describes the initial motion of the plate?
The plate undergoes a pure rotation with a net torque of magnitude 2.0 N m2.0\text{ N m}2.0 N m, with no translational acceleration.
The plate undergoes a pure rotation with a net torque of magnitude 10.0 N m10.0\text{ N m}10.0 N m, with no translational acceleration.
The plate remains in complete static equilibrium, with a net force of 0 N0\text{ N}0 N and a net torque of 0 N m0\text{ N m}0 N m.
The plate undergoes both translation and rotation, with a net force of 4.0 N4.0\text{ N}4.0 N and a net torque of 2.0 N m2.0\text{ N m}2.0 N m.