Question

Determine the amount of torque that is needed to hold up a weight with the arm at shoulder level. Draw a free body diagram to represent it. Assume the following and show all work:

Weight that is being held= 12 lbs

Center of mass of the limb = 26 cm from shoulder joint

Weight of limb= 8.5 lbs

Angle of insertion of the deltoid is 15 degrees. Moment arm is 3 cm.

Length of the limb = 65 cm

Weight is placed at 63 cm.

*This is all the information that I have from my professor for this problem. The best I can understand I need to figure out the amount of torque required to hold the weight. The next step in the problem asks for the amount of muscle force required by the deltoid to generate the amount of torque found in the first part of the problem.*

Answer 1

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