#### Answer

46 kg.

#### Work Step by Step

The magnitude of the torque she exerts is her weight multiplied by the distance between her feet and the left support post.
$$\tau = mgL$$
$$m=\frac{\tau}{gL}=\frac{1800 N \cdot m}{(9.8 m/s^2)(4.0m)}=46 kg$$

Published by
Pearson

ISBN 10:
0-32162-592-7

ISBN 13:
978-0-32162-592-2

46 kg.

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