Solution 13.3

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[[Image:13.3.gif]]
[[Image:13.3.gif]]
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Moment about <math>= </math> is
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Take moments about the pivoted end of the level, O.
<math>1.5\sin {{60}^{\circ }}\times 80=1.5\times 0.866\times 80=103.9\ \text{N}</math>
<math>1.5\sin {{60}^{\circ }}\times 80=1.5\times 0.866\times 80=103.9\ \text{N}</math>

Revision as of 10:44, 2 August 2010

Image:13.3.gif

Take moments about the pivoted end of the level, O.

\displaystyle 1.5\sin {{60}^{\circ }}\times 80=1.5\times 0.866\times 80=103.9\ \text{N}

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