To develop muscle tone, a woman lifts a 2.00-kg weight held in her hand. She uses her

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To develop muscle tone, a woman lifts a 2.00-kg weight held in her hand. She uses her biceps muscle to flex the lower arm through an angle of 60.0o.

(a) What is the angular acceleration if the weight is 24.0 cm from the elbow joint, her forearm has a moment of inertia of 0.250 kg · m2, and the muscle force is 750 N at an effective perpendicular lever arm of 2.00 cm?

(b) How much work does she do?

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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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Question Posted: Feb 27, 2017 10:23 AM

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To develop muscle tone, a woman lifts a 2.00-kg weight held in her hand. She uses her

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a Assuming her arm starts extended vertically downward we can calculate the in...View the full answer

Physics

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