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Revision as of 12:34, 4 April 2010 (edit) Ian (Talk | contribs) (New page: <math>mg=20\times 9\textrm{.}8=196\ \text{N}</math> Resolving up the plane <math>\begin{align} & F-mg\sin {{30}^{\circ }}=0 \\ & F=196\times 0\textrm{.}5=98\ \text{N} \\ \end{align}<...) ← Previous diff

Current revision (12:34, 4 April 2010) (edit) (undo) Ian (Talk | contribs) (New page: <math>mg=20\times 9\textrm{.}8=196\ \text{N}</math> Resolving up the plane <math>\begin{align} & F-mg\sin {{30}^{\circ }}=0 \\ & F=196\times 0\textrm{.}5=98\ \text{N} \\ \end{align}<...)

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Current revision

\displaystyle mg=20\times 9\textrm{.}8=196\ \text{N}

Resolving up the plane

\displaystyle \begin{align} & F-mg\sin {{30}^{\circ }}=0 \\ & F=196\times 0\textrm{.}5=98\ \text{N} \\ \end{align}

Resolving in the normal direction

\displaystyle \begin{align} & R-mg\cos {{30}^{\circ }}=0 \\ & R=196\times 0\textrm{.}866=170\ \text{N} \\ \end{align}