A 5.00-kg sack of flour is lifted vertically at a constant speed of 3.50 m/s through a

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A 5.00-kg sack of flour is lifted vertically at a constant speed of 3.50 m/s through a height of 15.0 m.
(a) How great a force is required?
(b) How much work is done on the sack by the lifting force? What becomes of this work?

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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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Question Posted: Feb 20, 2010 01:23 PM

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A 5.00-kg sack of flour is lifted vertically at a constant speed of 3.50 m/s through a

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IDENTIFY Apply F m to the sack to find the force W Fs coso SET UP The li...View the full answer

Physics

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