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While exercising in a fitness center, a man lies face down

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli ISBN: 9780130606204 3

Solution for problem 29PE Chapter 10

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

Physics: Principles with Applications | 6th Edition

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Problem 29PE

While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one lower leg by contacting the muscles in the back of the upper leg. (a) Find the angular acceleration produced given the mass lifted is 10.0 kg at a distance of 28.0 cm from the knee joint, the moment of inertia of the lower leg is 0.900 kg ? m2 , the muscle force is 1500 N, and its effective perpendicular lever arm is 3.00 cm. (b) How much work is done if the leg rotates through an angle of 20.0º with a constant force exerted by the muscle?

Step-by-Step Solution:

Step-by-step solution Step 1 o f 10 (a) The net torque acting about the knee joint is calculated as, Here, is the net toque acting, is the torque produced due to the weight lifted by the lower leg and is the torque produced due to the normal force acting on the back of upper leg.

Step 2 of 2

Chapter 10, Problem 29PE is Solved
Textbook: Physics: Principles with Applications
Edition: 6
Author: Douglas C. Giancoli
ISBN: 9780130606204

Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. This full solution covers the following key subjects: leg, Lower, muscle, Force, its. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. The full step-by-step solution to problem: 29PE from chapter: 10 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. Since the solution to 29PE from 10 chapter was answered, more than 347 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. The answer to “While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one lower leg by contacting the muscles in the back of the upper leg. (a) Find the angular acceleration produced given the mass lifted is 10.0 kg at a distance of 28.0 cm from the knee joint, the moment of inertia of the lower leg is 0.900 kg ? m2 , the muscle force is 1500 N, and its effective perpendicular lever arm is 3.00 cm. (b) How much work is done if the leg rotates through an angle of 20.0º with a constant force exerted by the muscle?” is broken down into a number of easy to follow steps, and 108 words.

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