A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N) with his forearm, as shown in (Figure). His forearm is positioned at B=60°B=60° with respect to his upper arm. The forearm is supported by a contraction of the biceps muscle, which causes a torque around the elbow. Assuming that the tension in the biceps acts along the vertical direction given by gravity, what tension must the muscle exert to hold the forearm at the position shown? What is the force on the elbow joint? Assume that the forearm's weight is negligible. Give your final answers in SI units. 60 50 ib 13.0 in.

A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N) with his forearm, as shown in (Figure). His forearm is positioned at B=60°B=60° with respect to his upper arm. The forearm is supported by a contraction of the biceps muscle, which causes a torque around the elbow. Assuming that the tension in the biceps acts along the vertical direction given by gravity, what tension must the muscle exert to hold the forearm at the position shown? What is the force on the elbow joint? Assume that the forearm's weight is negligible. Give your final answers in SI units. 60 50 ib 13.0 in.

Name: 5) A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N)
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Description: 5) A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N) with his forearm, asshown in (Figure). His forearm is positioned at B=60°B=60° withrespect to his upper arm. The forearm is supported bya contraction of the biceps muscle, which c

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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