10.
已知向量\( \overrightarrow{a}=(-3,1)\),\( \overrightarrow{b}=(1,-2)\),\( \overrightarrow{m}= \overrightarrow{a}+k \overrightarrow{b}(k∈R)\).
\((1)\)若\( \overrightarrow{m}\)与向量\(2 \overrightarrow{a}- \overrightarrow{b}\)垂直,求实数\(k\)的值;
\((2)\)若向量\( \overrightarrow{c}=(1,-1)\),且\( \overrightarrow{m}\)与向量\(k \overrightarrow{b}+ \overrightarrow{c}\)平行,求实数\(k\)的值.