If the torque required to loosen a nut on the wheel of a car has a magnitude of 60.0 N•m, what minimum perpendicular force must be exerted by a mechanic at the end of a 45.0 cm wrench to loosen the nut?
A. 0.666 Nm
B. 133.3 N
C. 66.7 N
D. 13.3 Nm
Answer: B. 133.3 N
