Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 1 - Measurement - Problems - Page 12: 58

Answer

The staircase would extend an extra 120 cm.

Work Step by Step

$4.57m=457cm$ $457/19=24.05$ steps total Now, we calculate the horizontal difference between the regular 23 cm step and the extended 28 cm step. $(24\times28cm)-(24\times23cm)=120cm$
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