A machinist is using a wrench to loosen a nut. The wrench is 25.0 cm long, and he exerts a 17.0-N force at the end of the handle at 37° with the handle (Fig. E10.7). What is the maximum torque he could exert with this force, and how should the force be oriented?

(I) A 58-kg person riding a bike puts all her weight on each pedal when climbing a hill. The pedals rotate in a circle of radius 17 cm. What is the maximum torque she exerts?

(I) A 58-kg person riding a bike puts all her weight on each pedal when climbing a hill. The pedals rotate in a circle of radius 17 cm. How could she exert more torque?

(II) A particle is located at $\overrightarrow{r}$ = ( 5.0î + 3.5ĵ + 6.0k̂)m. A force $\overrightarrow{F}$ = (8.0ĵ - 4.0k̂) N acts on it. What is the torque, calculated about the origin?

Force $\vec{F}=-10\hat{j}\text{N}$ is exerted on a particle at $\(\vec{r}\) = (5\(\hat{i}\) + 5\(\hat{j}\)) \, \(\text{m}\)$. What is the torque on the particle about the origin?

In FIGURE EX12.19, for what value of X_axle will the two forces provide 1.8 Nm of torque about the axle?

(II) The bolts on the cylinder head of an engine require tightening to a torque of 95 m N. If a wrench is 28 cm long, what force perpendicular to the wrench must the mechanic exert at its end?