If a ladder is not in balance against a smooth vertical wall, then ...

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If a ladder is not in balance against a smooth vertical wall, then it can be made in
\( \mathrm{P} \) balance by:

W
(1) Decreasing the length of ladder
(2) Increasing the length of ladder
(3) Increasing the angle of inclination
(4) Decreasing the angle of inclination
\[
\theta
\]
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