A $30.0 \mathrm{~cm}$ Wrench Is Used to Generate a Torque at a Bolt

Multiple Choice

A $30.0 \mathrm{~cm}$ wrench is used to generate a torque at a bolt. A force of $40 \mathrm{~N}$ is applied perpendicularly at the end of the wrench. The torque generated at the bolt is

A) $9.0 \mathrm{~N} \cdot \mathrm{m}$ .
B) $7.0 \mathrm{~N} \cdot \mathrm{m}$ .
C) $12 \mathrm{~N} \cdot \mathrm{m}$ .
D) $20 \mathrm{~N} \cdot \mathrm{m}$ .
E) $5.0 \mathrm{~N} \cdot \mathrm{m}$ .