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Safari File Edit View History Bookmarks Window Help 78% Sun Apr 15 10:49 PM E saplinglearning.com ?? ANTHRO 152 Google Docs University of California, Merced PHYS 18-Spring18 LIU: HW: Tor Physics question | Chegg.com Sapling Learning Ruben Chavez Jump to.. 4/15/2018 11:59 PM 4 42.9/1004/15/2018 09:06 PM Gradebook Assignment Information Attempts Print Calculator Ed Periodic Table Question 19 of 21 Available From: Not Set Due Date: Points Possible: 100 Grade Category: Graded Description Policies: Map 4/15/2018 11:59 PM presented by Sapling Leaming e bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle to the bones of the forearm about 2.15 cm beyond the joint. Assume the forearm has a mass of 2.15 kg and a length of 0.405 m. When the humerus and the biceps are nearly vertical and the forearm is horizontal, if a person wishes to hold an object of mass 5.75 kg so that her forearm remains motionless what is the force exerted by the biceps muscle? 10 12 13 14 You can check your answers. You can view solutions when you com give up on any question. You can keep trying to answer each qu until you get it right or give up. You lose 5% of the points available to answer in your question for each incor attempt at that answer Muscle Hur Radius eTextbook 16 Elbow 17 Hand Help With This Topic 18 O Web Help & Videos 20 O Technical Support and Bug Rep Previous Give Up &View; Solution Check NxtExit Hint 21

Explanation / Answer

considering the torques about elbow joint

F x 0.0215 - 2.15 x 9.81 x 0.405/2 + 5.75 x 9.81 x 0.405 = 0

F = (22.85 + 4.271)/0.0215 = 1261.44 N

F = 1261.44 N

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