
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN: 9780078807213
Author: Paul W. Zitzewitz
Publisher: Glencoe/McGraw-Hill
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A car making a 106-km journey travels 39 km/h for the first 53 km. How fast must it go during the second 53 km to average 47 km/h?
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