Question

(Double points) A mechanic used a wrench 0.6 meters long to loosen rusted lug nuts on a truck wheel. By standing on the end of the wrench, he was able to apply his entire 100 kg weight to the wrench. How much torque did he apply?

Answer 1

Torque,
`\tau=588\ N-m`

Step-by-step explanation:

It is given that,

Length of the wrench, l = 0.6 m

Mass of the wrench, m = 100 kg

We know that the torque applied by mechanic is given by :

`\tau=Fl`

`\tau=mgl`

`\tau=100* 9.8* 0.6`

`\tau=588\ N-m`

So, the torque applied by the mechanic is 588 N-m. Hence, this is the required solution.