Answer
$$\frac{\tau_{truck}}{\tau_{car}}=1.32$$
Work Step by Step
The torque produced by a force $F$ has the formula $\tau=Fl$
$F$ is applied in the same direction as each steering wheel, so the lever arm $l$ is the radius of the wheel. So the torque produced is:
- In the car: $\tau_{car}=F\times0.19m=0.19F$
- In the truck: $\tau_{truck}=F\times0.25m=0.25F$
Therefore, $$\frac{\tau_{truck}}{\tau_{car}}=\frac{0.25}{0.19}=1.32$$
