You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert

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You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force of 120 N, the sled has an acceleration of 2.5 m/s2. If the sled has a mass of 7.4 kg, what is the mass of your little sister?
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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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