Calculating Torque: How much torque do you exert on a lug nut when changing a car tire?

Question:

If you weigh 800N and stand on the end of a 2m long wrench while loosening a lug nut, how much torque do you exert on the lug nut?

Answer:

The torque exerted on the lug nut is 1600 N·m.

Explanation:

To calculate the torque exerted on the lug nut, you need to multiply the force you exert by the length of the wrench. In this case, the force you exert is 800N and the length of the wrench is 2m. By multiplying these two values, you can determine the torque you exert on the lug nut.

Therefore, the torque you exert is calculated as follows:

Torque = Force x Distance

Torque = 800N x 2m

Torque = 1600 N·m

So, when you weigh 800N and stand on the end of a 2m long wrench while changing a car tire, you exert a torque of 1600 N·m on the lug nut, allowing you to loosen it effectively.