5. Relative to a fixed origin \(O\),
- the point \(A\) has position vector \(- 2 \mathbf { i } + 3 \mathbf { j }\),
- the point \(B\) has position vector \(3 \mathbf { i } + p \mathbf { j }\), where \(p\) is constant,
Given that \(| \overrightarrow { A B } | = 5 \sqrt { 2 }\), find the possible values for \(p\).
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