5 \end{gathered} > \begin{gathered} 3 u ( 1 + e ) ( 11 - 5 e )
80 \end{gathered}\)} &

M1ft

М1

& \multirow[t]{3}{*}{

3.4

1.1

2.2a

1.1

} & \multirow[t]{4}{*}{

Correct condition for further collision (ft their \(V _ { B }\) from (b)

Rearranging to 3 term quadratic inequality in \(e\) \(e < { } _ { 3 } ^ { 1 } \text { is not sufficient for } \mathrm { A } 1\)

} & \multirow{4}{*}{If B1 not awarded then award A1 for \(0 \leq e < \begin{aligned} & 1
& 3 \end{aligned}\)}
\hline & & & & & &
\hline & & \(A\) and \(B\) collide again \(= > e \neq 0\) \(\begin{aligned} & ( 3 e - 1 ) ( e - 3 ) > 0 \text { and } 0 \leq e \leq 1 \text { and } e \neq 0
& \Rightarrow 0 < e < 1 \end{aligned}\) & B1 & & &
\hline & & & [4] & & &
\hline \end{tabular} \end{center}