#### Answer

\[\frac{2}{5}kilograms\]

#### Work Step by Step

Use the formula F=M*A. We know that the force is 4N and the acceleration is 10m/s^2. The equation will be 4N=Mass*10m/s^2. This makes Mass = 4/10 kilograms, or 0.4.

Published by
Pearson

ISBN 10:
0-32160-183-1

ISBN 13:
978-0-32160-183-4

\[\frac{2}{5}kilograms\]

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