Answer
Please see the work below.
Work Step by Step
We know that
$W=(m_{cage}+m_{rat})(a)$
We plug in the known values to obtain:
$0.46=(0.320+m_{rat})(0.40)$
This simplifies to:
$m_{rat}=0.83 \ Kg$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 4 - Exercises and Problems - Page 68: 52
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