A 120-kg mail bag hangs by a vertical rope 3.5 m long. A postal worker then displaces
Question:
(a) What horizontal force is necessary to hold the bag in the new position?
(b) As the bag is moved to this position, how much work is done
(i) By the rope and (ii) by the worker?
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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