In the sketch on the left, a ball gains KE when rolling down a hill because work

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In the sketch on the left, a ball gains KE when rolling down a hill because work is done by the component of weight (F) that acts in the direction of motion. Sketch in the similar component of gravitational force that does work to change the KE of the satellite on the right.
mg
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Conceptual Physics

ISBN: 978-0321909107

12th edition

Authors: Paul G. Hewitt

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