Answer
Work= 169785 Joules
Work Step by Step
Force of gravity= 825kg $\times$ 9.8m/$s^{2}$
$F_{g}$= 8085N
Distance= h/2---
Work= $F_{g}$$\times$Distance
Work=8085N $\times$ 21m
Work= 169785 Joules
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 8 - Potential Energy and Conservation of Energy - Problems - Page 202: 2b
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