You are holding a 12.7 pound dumbbell in your hand. The dumbbell is being held 14.1 inches from your elbow (horizontal distance). Your forearm weighs 5.3 pounds, and the center of mass of of your forearm is 4.3 inches from your elbow, again measured horizontally. Assuming your biceps is the only elbow flexor muscle acting to counter the effects of the dumbbell and arm weight, and has a moment arm at the elbow of 2 inches, what is the force in your biceps required to balance the dumbbell and forearm weight? Include units in your answer (Ibs) Express your answer to the nearest 0.1 lbs
You are holding a 12.7 pound dumbbell in your hand. The dumbbell is being held 14.1 inches from your elbow (horizontal distance). Your forearm weighs 5.3 pounds, and the center of mass of of your forearm is 4.3 inches from your elbow, again measured horizontally. Assuming your biceps is the only elbow flexor muscle acting to counter the effects of the dumbbell and arm weight, and has a moment arm at the elbow of 2 inches, what is the force in your biceps required to balance the dumbbell and forearm weight? Include units in your answer (Ibs) Express your answer to the nearest 0.1 lbs
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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Transcribed Image Text:You are holding a 12.7 pound dumbbell in your hand. The dumbbell is being held
14.1 inches from your elbow (horizontal distance). Your forearm weighs 5.3
pounds, and the center of mass of of your forearm is 4.3 inches from your elbow,
again measured horizontally.
Assuming your biceps is the only elbow flexor muscle acting to counter the
effects of the dumbbell and arm weight, and has a moment arm at the elbow of
2 inches, what is the force in your biceps required to balance the dumbbell and
forearm weight?
Include units in your answer (Ibs)
Express your answer to the nearest 0.1 Ibs
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