Which force produces the largest torque?
-10.0 N perpendicular to the center of rotation at a radius of 1.5 m
-10.0 N perpendicular to the center of rotation at a radius of 0.25 m
-10.0 N perpendicular to the center of rotation at a radius of 2.0 m
-20.0 N perpendicular to the center of rotation at a radius of 0.50 m