The magnitude of the tension force F → t in the deltoid muscle and the force F → s exerted by the shoulder on the humerus.

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A 35 N forearm (we are ignoring the hand for this problem) are held at a 45 deg angle to the vertically oriented humerus. The COM of the forearm is located at a distance of 15 cm from the joint center at the elbow, and the elbow flexor muscles have a 3 cm moment arm. How much force must be exerted by the elbow flexor muscles to maintain this position? Hide answer choices A A 35 N C 81.7 N 123.7 N D 371 N Fm 45° * --Wt₂

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Chapter 12, Problem 12.41AP

To determine

The magnitude of the tension force F→t in the deltoid muscle and the force F→s exerted by the shoulder on the humerus.

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