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Current revision (08:44, 30 September 2010) (edit) (undo) Ian (Talk | contribs) (New page: Using Conservation of Energy which gives that the energy at the start is the same aas the energy at the highest point. Assuming the potential energy at the start is zero, <math>\begin{al...)

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Using Conservation of Energy which gives that the energy at the start is the same aas the energy at the highest point.

Assuming the potential energy at the start is zero,

\displaystyle \begin{align} & 0+9=PE+1 \\ & PE=8\text{ J} \\ \end{align}