10th Edition

ISBN: 8220100853050

Author: Vuille

Publisher: CENGAGE L

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Textbook Question

Chapter 5, Problem 44P

A 25.0-kg child on a 2.00-m-long swing is released from rest when the ropes of the swing make an angle of 30.0° with the vertical. (a) Neglecting friction, find the child’s speed at the lowest position. (b) If the actual speed of the child at the lowest position is 2.00 m/s, what is the mechanical energy lost due to friction?

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Chapter 5 Solutions

EBK COLLEGE PHYSICS

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Solution Summary: The author explains that the child's speed is 2.29m/s. Since the motion is frictionless, according to the conservation of mechanical energy, KE_f+

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