Question

For a physics lab, we are asked to Analyze the torques exerted on the body while lifting 40 pounds with a squat-like form. We are expected to have someone lift the object and measure what we need.

My group is unsure about whether we are supposed to assume that the torque is zero at each of the different pivot points of the body. We have broken up the body into different body parts. What are some ways in which we can approach this problem?

Answer 1

There is another method to determine Torque of the body in physics lab. You have a single body but torque will not be zero about different pivot points. Elsewhere the sum may be zero.

Now you have broken the body into different body parts. So first calculate the torque exerted by one parts of the body and similarly so on. Now add all the torque of different body parts exerted on fixed pivot point. This sum will give you required torque exerted by body on pivot point.