(a) Find the tension in the strap.  N (b) Find the components of the reaction force exerted by the humerus on the forearm. (Assume the positive x-direction is to the right and the positive y-direction is upward

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter5: Displacement And Force In Two Dimensions
Section: Chapter Questions
Problem 52A
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In an emergency situation, a person with a broken forearm ties a strap from his hand to clip on his shoulder as in the figure below. His 1.60-kg forearm remains in a horizontal position and the strap makes an angle of ? = 45.0° with the horizontal. Assume the forearm is uniform, has a length of ℓ = 0.342 m, assume the biceps muscle is relaxed, and ignore the mass and length of the hand.
 
(a) Find the tension in the strap.
 N

(b) Find the components of the reaction force exerted by the humerus on the forearm. (Assume the positive x-direction is to the right and the positive y-direction is upward.)
Rx
=  N
Ry
=  N
R
Transcribed Image Text:R
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