Moderate -0.5 This is a straightforward 2D moment calculation requiring the formula M = Fd or the cross product r × F. While it's a Further Maths mechanics question, it's a 1-mark multiple choice problem testing basic recall of moment calculation about a point, making it easier than the average A-level question despite being from a Further Maths paper.
2 The force \(( 3 \mathbf { i } + 4 \mathbf { j } ) \mathrm { N }\) acts at the point with coordinates \(( 0,2 )\)
The unit vectors \(\mathbf { i }\) and \(\mathbf { j }\) are directed along the \(x\)-axis and the \(y\)-axis respectively.
Calculate the magnitude of the moment of this force about the origin.
Circle your answer. [0pt]
[1 mark]
6 Nm
8 Nm
10 Nm
14 Nm
2 The force $( 3 \mathbf { i } + 4 \mathbf { j } ) \mathrm { N }$ acts at the point with coordinates $( 0,2 )$\\
The unit vectors $\mathbf { i }$ and $\mathbf { j }$ are directed along the $x$-axis and the $y$-axis respectively.\\
Calculate the magnitude of the moment of this force about the origin.\\
Circle your answer.\\[0pt]
[1 mark]\\
6 Nm\\
8 Nm\\
10 Nm\\
14 Nm
\hfill \mbox{\textit{AQA Further Paper 3 Mechanics 2023 Q2 [1]}}