a b COR с d

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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One person was doing a knee extensor muscle training, he used a dumbbell (mass = 10.2 kg) strapped to the ankle joint and was 0.4 m from the knee joint (see attached figure). The dumbbell was 0.3 m away from the knee joint in the horizontal direction.

if the lever arm for the knee extensor muscle force was 0.04 m about the knee joint center, what amount of force must the knee extensor muscle produce to hold the leg in the above position? (Ignore the weight of the leg)

a
b
COR
с
d
Transcribed Image Text:a b COR с d
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