\(\therefore \,\,\,{{\text{m}}_{\text{1}}}\,\, = \,\,{m_2}\,\, = \,\,{m_3}\,\, = \,\,m\)

હવે, \({{\text{m}}_{\text{1}}}\) ટુકડા નો વેગ \(\mathop {{{\text{v}}_{\text{1}}}}\limits^ \to  \,\, = \,\,9\,\,\hat i\,\,m/s,\,\,{{\text{m}}_{\text{2}}}\,\) 

ટુકડા નો વેગ \(\,\mathop {{{\text{v}}_{\text{2}}}}\limits^ \to  \,\, = \,\,12\,\,\hat j\,\,\,m/s,\,\,{{\text{m}}_{\text{3}}}\) ટુકડા નો વેગ \(\mathop {{{\text{v}}_{\text{3}}}}\limits^ \to  \,\, = \,\,?\)

વેગમાં સંરક્ષણ ના નિયમ મુજબ \(\,{\text{M}}\,\,\mathop {\text{v}}\limits^ \to  \,\, = \,\,{{\text{m}}_{\text{1}}}\,\mathop {{v_1}}\limits^ \to  \,\, + \,\,\,{m_2}\,\mathop {{v_2}}\limits^ \to  \,\, + \,\,{m_3}\,\mathop {{v_3}}\limits^ \to  \)

\(0\,\, = \,\,m\,(9\,\,\hat i)\,\, + \,\,m\,\,(12\,\,\hat j)\,\, + \,\,m\,\,\mathop {{v_3}}\limits^ \to  \,\,\) 

(બોમ્બ પ્રારંભ માં સ્થિર છે)

\(\therefore \,\,\mathop {{{\text{v}}_{\text{3}}}}\limits^ \to  \,\, = \,\, - \,\,9\,\,\hat i\,\, - \,\,12\,\,\hat j\,\,\,\,\,\,\,\therefore \,\,\left| {\mathop {{v_3}}\limits^ \to  } \right|\,\, = \,\,\,\sqrt {{{( - 9)}^2}\, + \,\,{{( - 12)}^2}} \,\,\)

\( = \,\,\sqrt {81\,\, + \,\,144} \,\,\,\,\therefore \,\,\,\,\left| {\mathop {{v_3}}\limits^ \to  } \right|\,\, = \,\,15\,\,m\,\,{s^{ - 1}}\)